diff options
| author | Jörg Frings-Fürst <debian@jff-webhosting.net> | 2020-02-02 17:13:01 +0100 |
|---|---|---|
| committer | Jörg Frings-Fürst <debian@jff-webhosting.net> | 2020-02-02 17:13:01 +0100 |
| commit | ffa8801644a7d53cc1c785e3450f794c07a14eb0 (patch) | |
| tree | 8d72a18a9a08b9151d12badcb1c78ce06a059f62 /backend/genesys_gl843.cc | |
| parent | 1687222e1b9e74c89cafbb5910e72d8ec7bfd40f (diff) | |
New upstream version 1.0.29upstream/1.0.29
Diffstat (limited to 'backend/genesys_gl843.cc')
| -rw-r--r-- | backend/genesys_gl843.cc | 4415 |
1 files changed, 0 insertions, 4415 deletions
diff --git a/backend/genesys_gl843.cc b/backend/genesys_gl843.cc deleted file mode 100644 index a72dc5a..0000000 --- a/backend/genesys_gl843.cc +++ /dev/null @@ -1,4415 +0,0 @@ -/* sane - Scanner Access Now Easy. - - Copyright (C) 2010-2013 Stéphane Voltz <stef.dev@free.fr> - - - This file is part of the SANE package. - - This program is free software; you can redistribute it and/or - modify it under the terms of the GNU General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. - - This program is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, Boston, - MA 02111-1307, USA. - - As a special exception, the authors of SANE give permission for - additional uses of the libraries contained in this release of SANE. - - The exception is that, if you link a SANE library with other files - to produce an executable, this does not by itself cause the - resulting executable to be covered by the GNU General Public - License. Your use of that executable is in no way restricted on - account of linking the SANE library code into it. - - This exception does not, however, invalidate any other reasons why - the executable file might be covered by the GNU General Public - License. - - If you submit changes to SANE to the maintainers to be included in - a subsequent release, you agree by submitting the changes that - those changes may be distributed with this exception intact. - - If you write modifications of your own for SANE, it is your choice - whether to permit this exception to apply to your modifications. - If you do not wish that, delete this exception notice. -*/ - -#define DEBUG_DECLARE_ONLY - -#include "genesys_gl843.h" - -#include <string> -#include <vector> - -/**************************************************************************** - Low level function - ****************************************************************************/ - -/* ------------------------------------------------------------------------ */ -/* Read and write RAM, registers and AFE */ -/* ------------------------------------------------------------------------ */ - -/* Set address for writing data */ -static SANE_Status -gl843_set_buffer_address (Genesys_Device * dev, uint32_t addr) -{ - SANE_Status status = SANE_STATUS_GOOD; - - DBG(DBG_io, "%s: setting address to 0x%05x\n", __func__, addr & 0xffff); - - status = sanei_genesys_write_register (dev, 0x5b, ((addr >> 8) & 0xff)); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed while writing high byte: %s\n", __func__, sane_strstatus(status)); - return status; - } - - status = sanei_genesys_write_register (dev, 0x5c, (addr & 0xff)); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed while writing low byte: %s\n", __func__, sane_strstatus(status)); - return status; - } - - DBG(DBG_io, "%s: completed\n", __func__); - - return status; -} - -/** - * writes a block of data to RAM - * @param dev USB device - * @param addr RAM address to write to - * @param size size of the chunk of data - * @param data pointer to the data to write - */ -static SANE_Status -write_data (Genesys_Device * dev, uint32_t addr, uint32_t size, - uint8_t * data) -{ - SANE_Status status = SANE_STATUS_GOOD; - - DBGSTART; - - status = gl843_set_buffer_address (dev, addr); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed while setting address for bulk write data: %s\n", __func__, - sane_strstatus(status)); - return status; - } - - /* write actual data */ - status = sanei_genesys_bulk_write_data(dev, 0x28, data, size); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed while writing bulk write data: %s\n", __func__, - sane_strstatus(status)); - return status; - } - - /* set back address to 0 */ - status = gl843_set_buffer_address (dev, 0); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed setting to default RAM address: %s\n", __func__, - sane_strstatus(status)); - return status; - } - DBGCOMPLETED; - return status; -} - -/**************************************************************************** - Mid level functions - ****************************************************************************/ - -static SANE_Bool -gl843_get_fast_feed_bit (Genesys_Register_Set * regs) -{ - GenesysRegister *r = NULL; - - r = sanei_genesys_get_address (regs, REG02); - if (r && (r->value & REG02_FASTFED)) - return SANE_TRUE; - return SANE_FALSE; -} - -static SANE_Bool -gl843_get_filter_bit (Genesys_Register_Set * regs) -{ - GenesysRegister *r = NULL; - - r = sanei_genesys_get_address (regs, REG04); - if (r && (r->value & REG04_FILTER)) - return SANE_TRUE; - return SANE_FALSE; -} - -static SANE_Bool -gl843_get_lineart_bit (Genesys_Register_Set * regs) -{ - GenesysRegister *r = NULL; - - r = sanei_genesys_get_address (regs, REG04); - if (r && (r->value & REG04_LINEART)) - return SANE_TRUE; - return SANE_FALSE; -} - -static SANE_Bool -gl843_get_bitset_bit (Genesys_Register_Set * regs) -{ - GenesysRegister *r = NULL; - - r = sanei_genesys_get_address (regs, REG04); - if (r && (r->value & REG04_BITSET)) - return SANE_TRUE; - return SANE_FALSE; -} - -static SANE_Bool -gl843_get_gain4_bit (Genesys_Register_Set * regs) -{ - GenesysRegister *r = NULL; - - r = sanei_genesys_get_address (regs, REG06); - if (r && (r->value & REG06_GAIN4)) - return SANE_TRUE; - return SANE_FALSE; -} - -/** - * compute the step multiplier used - */ -static int -gl843_get_step_multiplier (Genesys_Register_Set * regs) -{ - GenesysRegister *r = NULL; - int value = 1; - - r = sanei_genesys_get_address (regs, REG9D); - if (r != NULL) - { - switch (r->value & 0x0c) - { - case 0x04: - value = 2; - break; - case 0x08: - value = 4; - break; - default: - value = 1; - } - } - DBG(DBG_io, "%s: step multiplier is %d\n", __func__, value); - return value; -} - -static SANE_Bool -gl843_test_buffer_empty_bit (SANE_Byte val) -{ - if (val & REG41_BUFEMPTY) - return SANE_TRUE; - return SANE_FALSE; -} - -static SANE_Bool -gl843_test_motor_flag_bit (SANE_Byte val) -{ - if (val & REG41_MOTORENB) - return SANE_TRUE; - return SANE_FALSE; -} - -/** copy sensor specific settings */ -static void -gl843_setup_sensor (Genesys_Device * dev, const Genesys_Sensor& sensor, - Genesys_Register_Set * regs, int dpi,int flags) -{ - (void) dpi; - (void) flags; - - DBGSTART; - - for (const auto& custom_reg : sensor.custom_regs) { - regs->set8(custom_reg.address, custom_reg.value); - } - if (!(dev->model->flags & GENESYS_FLAG_FULL_HWDPI_MODE)) { - regs->set8(0x7d, 0x90); - } - - DBGCOMPLETED; -} - - -/** @brief set all registers to default values . - * This function is called only once at the beginning and - * fills register startup values for registers reused across scans. - * Those that are rarely modified or not modified are written - * individually. - * @param dev device structure holding register set to initialize - */ -static void -gl843_init_registers (Genesys_Device * dev) -{ - // Within this function SENSOR_DEF marker documents that a register is part - // of the sensors definition and the actual value is set in - // gl843_setup_sensor(). - - DBGSTART; - - dev->reg.clear(); - - /* default to KV-SS080 */ - SETREG (0xa2, 0x0f); - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - SETREG(0xa2, 0x1f); - } - SETREG (0x01, 0x00); - SETREG (0x02, 0x78); - SETREG (0x03, 0x1f); - SETREG (0x04, 0x10); - - // fine tune upon device description - SETREG (0x05, 0x80); - if (dev->model->model_id == MODEL_HP_SCANJET_G4010 || - dev->model->model_id == MODEL_HP_SCANJET_G4050 || - dev->model->model_id == MODEL_HP_SCANJET_4850C) - { - SETREG (0x05, 0x08); - } - - dev->reg.find_reg(0x05).value &= ~REG05_DPIHW; - switch (sanei_genesys_find_sensor_any(dev).optical_res) - { - case 600: - dev->reg.find_reg(0x05).value |= REG05_DPIHW_600; - break; - case 1200: - dev->reg.find_reg(0x05).value |= REG05_DPIHW_1200; - break; - case 2400: - dev->reg.find_reg(0x05).value |= REG05_DPIHW_2400; - break; - case 4800: - dev->reg.find_reg(0x05).value |= REG05_DPIHW_4800; - break; - } - - // TODO: on 8600F the windows driver turns off GAIN4 which is recommended - SETREG (0x06, 0xd8); /* SCANMOD=110, PWRBIT and GAIN4 */ - SETREG (0x08, 0x00); - SETREG (0x09, 0x00); - SETREG (0x0a, 0x00); - - // This register controls clock and RAM settings and is further modified in - // gl843_boot - SETREG (0x0b, 0x6a); - - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - SETREG(0x0b, 0x89); - } - - // EXPR[0:15], EXPG[0:15], EXPB[0:15]: Exposure time settings. - SETREG(0x10, 0x00); // SENSOR_DEF - SETREG(0x11, 0x00); // SENSOR_DEF - SETREG(0x12, 0x00); // SENSOR_DEF - SETREG(0x13, 0x00); // SENSOR_DEF - SETREG(0x14, 0x00); // SENSOR_DEF - SETREG(0x15, 0x00); // SENSOR_DEF - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - dev->reg.set16(REG_EXPR, 0x9c40); - dev->reg.set16(REG_EXPG, 0x9c40); - dev->reg.set16(REG_EXPB, 0x9c40); - } - // CCD signal settings. - SETREG(0x16, 0x33); // SENSOR_DEF - SETREG(0x17, 0x1c); // SENSOR_DEF - SETREG(0x18, 0x10); // SENSOR_DEF - - // EXPDMY[0:7]: Exposure time of dummy lines. - SETREG(0x19, 0x2a); // SENSOR_DEF - - // Various CCD clock settings. - SETREG(0x1a, 0x04); // SENSOR_DEF - SETREG(0x1b, 0x00); // SENSOR_DEF - SETREG(0x1c, 0x20); // SENSOR_DEF - SETREG(0x1d, 0x04); // SENSOR_DEF - - SETREG (0x1e, 0x10); - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - SETREG(0x1e, 0x20); - } - - SETREG (0x1f, 0x01); - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - SETREG(0x1f, 0xff); - } - - SETREG (0x20, 0x10); - SETREG (0x21, 0x04); - SETREG (0x22, 0x01); - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - SETREG(0x22, 0xc8); - } - - SETREG (0x23, 0x01); - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - SETREG(0x23, 0xc8); - } - - SETREG (0x24, 0x04); - SETREG (0x25, 0x00); - SETREG (0x26, 0x00); - SETREG (0x27, 0x00); - SETREG (0x2c, 0x02); - SETREG (0x2d, 0x58); - // BWHI[0:7]: high level of black and white threshold - SETREG (0x2e, 0x80); - // BWLOW[0:7]: low level of black and white threshold - SETREG (0x2f, 0x80); - SETREG (0x30, 0x00); - SETREG (0x31, 0x14); - SETREG (0x32, 0x27); - SETREG (0x33, 0xec); - - // DUMMY: CCD dummy and optically black pixel count - SETREG (0x34, 0x24); - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - SETREG(0x34, 0x14); - } - - // MAXWD: If available buffer size is less than 2*MAXWD words, then - // "buffer full" state will be set. - SETREG (0x35, 0x00); - SETREG (0x36, 0xff); - SETREG (0x37, 0xff); - - // LPERIOD: Line period or exposure time for CCD or CIS. - SETREG(0x38, 0x55); // SENSOR_DEF - SETREG(0x39, 0xf0); // SENSOR_DEF - - // FEEDL[0:24]: The number of steps of motor movement. - SETREG(0x3d, 0x00); - SETREG (0x3e, 0x00); - SETREG (0x3f, 0x01); - - // Latch points for high and low bytes of R, G and B channels of AFE. If - // multiple clocks per pixel are consumed, then the setting defines during - // which clock the corresponding value will be read. - // RHI[0:4]: The latch point for high byte of R channel. - // RLOW[0:4]: The latch point for low byte of R channel. - // GHI[0:4]: The latch point for high byte of G channel. - // GLOW[0:4]: The latch point for low byte of G channel. - // BHI[0:4]: The latch point for high byte of B channel. - // BLOW[0:4]: The latch point for low byte of B channel. - SETREG(0x52, 0x01); // SENSOR_DEF - SETREG(0x53, 0x04); // SENSOR_DEF - SETREG(0x54, 0x07); // SENSOR_DEF - SETREG(0x55, 0x0a); // SENSOR_DEF - SETREG(0x56, 0x0d); // SENSOR_DEF - SETREG(0x57, 0x10); // SENSOR_DEF - - // VSMP[0:4]: The position of the image sampling pulse for AFE in cycles. - // VSMPW[0:2]: The length of the image sampling pulse for AFE in cycles. - SETREG(0x58, 0x1b); // SENSOR_DEF - - SETREG(0x59, 0x00); // SENSOR_DEF - SETREG(0x5a, 0x40); // SENSOR_DEF - - // 0x5b-0x5c: GMMADDR[0:15] address for gamma or motor tables download - // SENSOR_DEF - - // DECSEL[0:2]: The number of deceleratino steps after touching home sensor - // STOPTIM[0:4]: The stop duration between change of directions in - // backtracking - SETREG (0x5e, 0x23); - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - SETREG(0x5e, 0x1f); - } - - // FMOVDEC: The number of deceleration steps in table 5 for auto-go-home - SETREG (0x5f, 0x01); - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - SETREG(0x5f, 0xf0); - } - - // Z1MOD[0:20] - SETREG (0x60, 0x00); - SETREG (0x61, 0x00); - SETREG (0x62, 0x00); - - // Z2MOD[0:20] - SETREG (0x63, 0x00); - SETREG (0x64, 0x00); - SETREG (0x65, 0x00); - - // STEPSEL[0:1]. Motor movement step mode selection for tables 1-3 in - // scanning mode. - // MTRPWM[0:5]. Motor phase PWM duty cycle setting for tables 1-3 - SETREG (0x67, 0x7f); - // FSTPSEL[0:1]: Motor movement step mode selection for tables 4-5 in - // command mode. - // FASTPWM[5:0]: Motor phase PWM duty cycle setting for tables 4-5 - SETREG (0x68, 0x7f); - - // FSHDEC[0:7]: The number of deceleration steps after scanning is finished - // (table 3) - SETREG (0x69, 0x01); - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - SETREG(0x69, 64); - } - - // FMOVNO[0:7] The number of acceleration or deceleration steps for fast - // moving (table 4) - SETREG (0x6a, 0x04); - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - SETREG(0x69, 64); - } - - // GPIO-related register bits - SETREG (0x6b, 0x30); - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - SETREG(0x6b, 0x72); - } - - // 0x6c, 0x6d, 0x6e, 0x6f are set according to gpio tables. See - // gl843_init_gpio. - - // RSH[0:4]: The position of rising edge of CCD RS signal in cycles - // RSL[0:4]: The position of falling edge of CCD RS signal in cycles - // CPH[0:4]: The position of rising edge of CCD CP signal in cycles. - // CPL[0:4]: The position of falling edge of CCD CP signal in cycles - SETREG(0x70, 0x01); // SENSOR_DEF - SETREG(0x71, 0x03); // SENSOR_DEF - SETREG (0x72, 0x04); - SETREG (0x73, 0x05); - - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - SETREG(0x70, 0x00); - SETREG(0x71, 0x02); - SETREG(0x72, 0x02); - SETREG(0x73, 0x04); - } - - // CK1MAP[0:17], CK3MAP[0:17], CK4MAP[0:17]: CCD clock bit mapping setting. - SETREG(0x74, 0x00); // SENSOR_DEF - SETREG(0x75, 0x00); // SENSOR_DEF - SETREG(0x76, 0x3c); // SENSOR_DEF - SETREG(0x77, 0x00); // SENSOR_DEF - SETREG(0x78, 0x00); // SENSOR_DEF - SETREG(0x79, 0x9f); // SENSOR_DEF - SETREG(0x7a, 0x00); // SENSOR_DEF - SETREG(0x7b, 0x00); // SENSOR_DEF - SETREG(0x7c, 0x55); // SENSOR_DEF - - // various AFE settings - SETREG(0x7d, 0x00); - - // GPOLED[x]: LED vs GPIO settings - SETREG(0x7e, 0x00); - - // BSMPDLY, VSMPDLY - // LEDCNT[0:1]: Controls led blinking and its period - SETREG (0x7f, 0x00); - - // VRHOME, VRMOVE, VRBACK, VRSCAN: Vref settings of the motor driver IC for - // moving in various situations. - SETREG (0x80, 0x00); - - if (dev->model->model_id != MODEL_CANON_CANOSCAN_4400F) - { - // NOTE: Historical code. None of the following 6 registers are - // documented in the datasheet. Their default value is 0, so probably it's - // not a bad idea to leave this here. - SETREG (0x81, 0x00); - SETREG (0x82, 0x00); - SETREG (0x83, 0x00); - SETREG (0x84, 0x00); - SETREG (0x85, 0x00); - SETREG (0x86, 0x00); - } - - SETREG (0x87, 0x00); - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - SETREG(0x87, 0x02); - } - - // MTRPLS[0:7]: The width of the ADF motor trigger signal pulse. - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - SETREG(0x94, 0xff); - } - - // 0x95-0x97: SCANLEN[0:19]: Controls when paper jam bit is set in sheetfed - // scanners. - - // ONDUR[0:15]: The duration of PWM ON phase for LAMP control - // OFFDUR[0:15]: The duration of PWM OFF phase for LAMP control - // both of the above are in system clocks - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - SETREG(0x98, 0x00); - SETREG(0x99, 0x00); - SETREG(0x9a, 0x00); - SETREG(0x9b, 0x00); - } - - // RMADLY[0:1], MOTLAG, CMODE, STEPTIM, MULDMYLN, IFRS - SETREG(0x9d, 0x04); - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - SETREG(0x9d, 0x08); // additionally sets the multiplier for slope tables - } - - - // SEL3INV, TGSTIME[0:2], TGWTIME[0:2] - SETREG (0x9e, 0x00); // SENSOR_DEF - - // RFHSET[0:4]: Refresh time of SDRAM in units of 2us - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - SETREG(0xa2, 0x1f); - } - - // 0xa6-0xa9: controls gpio, see gl843_gpio_init - - // GPOM9, MULSTOP[0-2], NODECEL, TB3TB1, TB5TB2, FIX16CLK. - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - SETREG(0xab, 0x00); - } - - // VRHOME[3:2], VRMOVE[3:2], VRBACK[3:2]: Vref setting of the motor driver IC - // for various situations. - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - SETREG(0xac, 0x00); - } - - if (dev->model->model_id != MODEL_CANON_CANOSCAN_8400F) - { - SETREG (0x0c, 0x00); - SETREG (0x94, 0xff); - SETREG (0xab, 0x50); - } - - if (dev->model->model_id != MODEL_CANON_CANOSCAN_4400F - && dev->model->model_id != MODEL_CANON_CANOSCAN_8400F) - { - SETREG (0xaa, 0x00); - } - - /* G4050 values */ - if (dev->model->model_id == MODEL_HP_SCANJET_G4010 || - dev->model->model_id == MODEL_HP_SCANJET_G4050 || - dev->model->model_id == MODEL_HP_SCANJET_4850C) - { - SETREG (0x03, 0x1d); - SETREG (0x06, 0xd0); /* SCANMOD=110, PWRBIT and no GAIN4 */ - SETREG (0x06, 0xd8); /* SCANMOD=110, PWRBIT and GAIN4 */ - SETREG (0x0a, 0x18); - SETREG (0x0b, 0x69); - - /* CIS exposure is used for XPA lamp movement */ - SETREG (0x10, 0x2c); - SETREG (0x11, 0x09); - SETREG (0x12, 0x22); - SETREG (0x13, 0xb8); - SETREG (0x14, 0x10); - SETREG (0x15, 0xf0); - - SETREG (0x6b, 0xf4); - - SETREG (0x70, 0x00); - SETREG (0x71, 0x02); - SETREG (0x72, 0x00); - SETREG (0x73, 0x00); - - SETREG (0x80, 0x50); - SETREG (0x9d, 0x08); - SETREG (0xab, 0x40); - - /* XXX STEF XXX TODO move to set for scan */ - SETREG (0x98, 0x03); - SETREG (0x99, 0x30); - SETREG (0x9a, 0x01); - SETREG (0x9b, 0x80); - SETREG (0xac, 0x00); - } - - if (dev->model->model_id == MODEL_CANON_CANOSCAN_4400F) - { - SETREG (0x06, 0xf0); /* SCANMOD=111, PWRBIT and no GAIN4 */ - SETREG (0x0b, 0x69); /* 16M only */ - SETREG (0x1e, 0x20); - SETREG (0x22, 0xc8); - SETREG (0x23, 0xc8); - SETREG (0x5e, 0x3f); - SETREG (0x5f, 0xf0); - SETREG (0x6b, 0x72); - SETREG (0x72, 0x01); - SETREG (0x73, 0x03); - SETREG (0x80, 0x0c); - SETREG (0x87, 0x02); /* MCLOCK -> CK4MAP */ - SETREG (0x9d, 0x08); /* STEPTIM=2 */ - SETREG (0xa2, 0x1f); - SETREG (0xab, 0x00); - sanei_genesys_set_double(&dev->reg,REG_EXPR,0x9c40); - sanei_genesys_set_double(&dev->reg,REG_EXPG,0x9c40); - sanei_genesys_set_double(&dev->reg,REG_EXPB,0x9c40); - } - - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8400F) - { - SETREG (0x03, 0x1c); - SETREG (0x06, 0xd0); /* SCANMOD=110, PWRBIT and no GAIN4 */ - SETREG (0x0a, 0x10); - SETREG (0x22, 0x50); - SETREG (0x23, 0x50); - SETREG (0x5e, 0x85); - SETREG (0x6b, 0xb1); - SETREG (0x1e, 0xa0); - SETREG (0x72, 0x03); - SETREG (0x73, 0x04); - SETREG (0x7d, 0x20); - SETREG (0x80, 0x28); - SETREG (0x87, 0x02); /* MCLOCK -> CK4MAP */ - SETREG (0x9d, 0x08); /* STEPTIM=2 */ - } - - dev->calib_reg = dev->reg; - - DBGCOMPLETED; -} - -/* Send slope table for motor movement - slope_table in machine byte order - */ -static SANE_Status -gl843_send_slope_table (Genesys_Device * dev, int table_nr, - uint16_t * slope_table, int steps) -{ - SANE_Status status = SANE_STATUS_GOOD; - int i; - char msg[10000]; - - DBG(DBG_proc, "%s (table_nr = %d, steps = %d)\n", __func__, table_nr, steps); - - std::vector<uint8_t> table(steps * 2); - for (i = 0; i < steps; i++) - { - table[i * 2] = slope_table[i] & 0xff; - table[i * 2 + 1] = slope_table[i] >> 8; - } - - if (DBG_LEVEL >= DBG_io) - { - sprintf (msg, "write slope %d (%d)=", table_nr, steps); - for (i = 0; i < steps; i++) - { - sprintf (msg+strlen(msg), "%d", slope_table[i]); - } - DBG(DBG_io, "%s: %s\n", __func__, msg); - } - - - /* slope table addresses are fixed : 0x4000, 0x4800, 0x5000, 0x5800, 0x6000 */ - /* XXX STEF XXX USB 1.1 ? sanei_genesys_write_0x8c (dev, 0x0f, 0x14); */ - status = write_data (dev, 0x4000 + 0x800 * table_nr, steps * 2, table.data()); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: write data failed writing slope table %d (%s)\n", __func__, table_nr, - sane_strstatus(status)); - } - - DBGCOMPLETED; - return status; -} - - -/* Set values of analog frontend */ -static SANE_Status -gl843_set_fe (Genesys_Device * dev, const Genesys_Sensor& sensor, uint8_t set) -{ - (void) sensor; - SANE_Status status = SANE_STATUS_GOOD; - uint8_t val; - int i; - - DBG(DBG_proc, "%s (%s)\n", __func__, set == AFE_INIT ? "init" : set == AFE_SET ? "set" : set == - AFE_POWER_SAVE ? "powersave" : "huh?"); - - if (set == AFE_INIT) - { - DBG(DBG_proc, "%s(): setting DAC %u\n", __func__, dev->model->dac_type); - dev->frontend = dev->frontend_initial; - } - - /* check analog frontend type */ - // FIXME: looks like we write to that register with initial data - RIE (sanei_genesys_read_register (dev, REG04, &val)); - if ((val & REG04_FESET) != 0x00) - { - /* for now there is no support for AD fe */ - DBG(DBG_proc, "%s(): unsupported frontend type %d\n", __func__, - dev->reg.find_reg(0x04).value & REG04_FESET); - return SANE_STATUS_UNSUPPORTED; - } - - DBG(DBG_proc, "%s(): frontend reset complete\n", __func__); - - for (i = 1; i <= 3; i++) - { - // FIXME: BUG: we should initialize dev->frontend before first use. Right now it's - // initialized during genesys_coarse_calibration() - if (dev->frontend.regs.empty()) { - status = sanei_genesys_fe_write_data(dev, i, 0x00); - } else { - status = sanei_genesys_fe_write_data(dev, i, dev->frontend.regs.get_value(0x00 + i)); - } - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: writing reg[%d] failed: %s\n", __func__, i, sane_strstatus(status)); - return status; - } - } - for (const auto& reg : sensor.custom_fe_regs) { - status = sanei_genesys_fe_write_data(dev, reg.address, reg.value); - if (status != SANE_STATUS_GOOD) { - DBG(DBG_error, "%s: writing reg[%d] failed: %s\n", __func__, i, sane_strstatus(status)); - return status; - } - } - - for (i = 0; i < 3; i++) - { - // FIXME: BUG: see above - if (dev->frontend.regs.empty()) { - status = sanei_genesys_fe_write_data(dev, 0x20 + i, 0x00); - } else { - status = sanei_genesys_fe_write_data(dev, 0x20 + i, dev->frontend.get_offset(i)); - } - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: writing offset[%d] failed: %s\n", __func__, i, - sane_strstatus(status)); - return status; - } - } - - if (dev->model->ccd_type == CCD_KVSS080) - { - for (i = 0; i < 3; i++) - { - // FIXME: BUG: see above - if (dev->frontend.regs.empty()) { - status = sanei_genesys_fe_write_data(dev, 0x24 + i, 0x00); - } else { - status = sanei_genesys_fe_write_data(dev, 0x24 + i, - dev->frontend.regs.get_value(0x24 + i)); - } - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: writing sign[%d] failed: %s\n", __func__, i, - sane_strstatus(status)); - return status; - } - } - } - - for (i = 0; i < 3; i++) - { - // FIXME: BUG: see above - if (dev->frontend.regs.empty()) { - status = sanei_genesys_fe_write_data(dev, 0x28 + i, 0x00); - } else { - status = sanei_genesys_fe_write_data(dev, 0x28 + i, dev->frontend.get_gain(i)); - } - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: writing gain[%d] failed: %s\n", __func__, i, sane_strstatus(status)); - return status; - } - } - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - - -static SANE_Status -gl843_init_motor_regs_scan (Genesys_Device * dev, - const Genesys_Sensor& sensor, - Genesys_Register_Set * reg, - unsigned int exposure, - float scan_yres, - int scan_step_type, - unsigned int scan_lines, - unsigned int scan_dummy, - unsigned int feed_steps, - int scan_power_mode, - unsigned int flags) -{ - SANE_Status status = SANE_STATUS_GOOD; - int use_fast_fed, coeff; - unsigned int lincnt; - uint16_t scan_table[1024]; - uint16_t fast_table[1024]; - int scan_steps,fast_steps, fast_step_type; - unsigned int feedl,factor,dist; - GenesysRegister *r; - uint32_t z1, z2; - - DBGSTART; - DBG(DBG_info, "%s : exposure=%d, scan_yres=%g, scan_step_type=%d, scan_lines=%d, scan_dummy=%d, " - "feed_steps=%d, scan_power_mode=%d, flags=%x\n", __func__, exposure, scan_yres, - scan_step_type, scan_lines, scan_dummy, feed_steps, scan_power_mode, flags); - - /* get step multiplier */ - factor = gl843_get_step_multiplier (reg); - - use_fast_fed = 0; - - if((scan_yres>=300 && feed_steps>900) || (flags & MOTOR_FLAG_FEED)) - use_fast_fed=1; - - lincnt=scan_lines; - sanei_genesys_set_triple(reg,REG_LINCNT,lincnt); - DBG(DBG_io, "%s: lincnt=%d\n", __func__, lincnt); - - /* compute register 02 value */ - r = sanei_genesys_get_address (reg, REG02); - r->value = 0x00; - sanei_genesys_set_motor_power(*reg, true); - - if (use_fast_fed) - r->value |= REG02_FASTFED; - else - r->value &= ~REG02_FASTFED; - - /* in case of automatic go home, move until home sensor */ - if (flags & MOTOR_FLAG_AUTO_GO_HOME) - r->value |= REG02_AGOHOME | REG02_NOTHOME; - - /* disable backtracking */ - if ((flags & MOTOR_FLAG_DISABLE_BUFFER_FULL_MOVE) - ||(scan_yres>=2400) - ||(scan_yres>=sensor.optical_res)) - r->value |= REG02_ACDCDIS; - - /* scan and backtracking slope table */ - sanei_genesys_slope_table(scan_table, - &scan_steps, - scan_yres, - exposure, - dev->motor.base_ydpi, - scan_step_type, - factor, - dev->model->motor_type, - gl843_motors); - RIE(gl843_send_slope_table (dev, SCAN_TABLE, scan_table, scan_steps*factor)); - RIE(gl843_send_slope_table (dev, BACKTRACK_TABLE, scan_table, scan_steps*factor)); - - /* STEPNO */ - r = sanei_genesys_get_address (reg, REG_STEPNO); - r->value = scan_steps; - - /* FSHDEC */ - r = sanei_genesys_get_address (reg, REG_FSHDEC); - r->value = scan_steps; - - /* fast table */ - fast_step_type=0; - if(scan_step_type<=fast_step_type) - { - fast_step_type=scan_step_type; - } - sanei_genesys_slope_table(fast_table, - &fast_steps, - sanei_genesys_get_lowest_ydpi(dev), - exposure, - dev->motor.base_ydpi, - fast_step_type, - factor, - dev->model->motor_type, - gl843_motors); - RIE(gl843_send_slope_table (dev, STOP_TABLE, fast_table, fast_steps*factor)); - RIE(gl843_send_slope_table (dev, FAST_TABLE, fast_table, fast_steps*factor)); - RIE(gl843_send_slope_table (dev, HOME_TABLE, fast_table, fast_steps*factor)); - - /* FASTNO */ - r = sanei_genesys_get_address (reg, REG_FASTNO); - r->value = fast_steps; - - /* FMOVNO */ - r = sanei_genesys_get_address (reg, REG_FMOVNO); - r->value = fast_steps; - - /* substract acceleration distance from feedl */ - feedl=feed_steps; - feedl<<=scan_step_type; - - dist = scan_steps; - if (use_fast_fed) - { - dist += fast_steps*2; - } - DBG(DBG_io2, "%s: acceleration distance=%d\n", __func__, dist); - - /* get sure when don't insane value : XXX STEF XXX in this case we should - * fall back to single table move */ - if(dist<feedl) - feedl -= dist; - else - feedl = 1; - - sanei_genesys_set_triple(reg,REG_FEEDL,feedl); - DBG(DBG_io, "%s: feedl=%d\n", __func__, feedl); - - /* doesn't seem to matter that much */ - sanei_genesys_calculate_zmode2 (use_fast_fed, - exposure, - scan_table, - scan_steps, - feedl, - scan_steps, - &z1, - &z2); - if(scan_yres>600) - { - z1=0; - z2=0; - } - - sanei_genesys_set_triple(reg,REG_Z1MOD,z1); - DBG(DBG_info, "%s: z1 = %d\n", __func__, z1); - - sanei_genesys_set_triple(reg,REG_Z2MOD,z2); - DBG(DBG_info, "%s: z2 = %d\n", __func__, z2); - - r = sanei_genesys_get_address (reg, REG1E); - r->value &= 0xf0; /* 0 dummy lines */ - r->value |= scan_dummy; /* dummy lines */ - - r = sanei_genesys_get_address (reg, REG67); - r->value = 0x3f | (scan_step_type << REG67S_STEPSEL); - - r = sanei_genesys_get_address (reg, REG68); - r->value = 0x3f | (scan_step_type << REG68S_FSTPSEL); - - /* steps for STOP table */ - r = sanei_genesys_get_address (reg, REG_FMOVDEC); - r->value = fast_steps; - - /* Vref XXX STEF XXX : optical divider or step type ? */ - r = sanei_genesys_get_address (reg, 0x80); - if (!(dev->model->flags & GENESYS_FLAG_FULL_HWDPI_MODE)) - { - r->value = 0x50; - coeff=sensor.optical_res/sanei_genesys_compute_dpihw(dev, sensor, scan_yres); - if (dev->model->motor_type == MOTOR_KVSS080) - { - if(coeff>=1) - { - r->value |= 0x05; - } - } - else { - switch(coeff) - { - case 4: - r->value |= 0x0a; - break; - case 2: - r->value |= 0x0f; - break; - case 1: - r->value |= 0x0f; - break; - } - } - } - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - - -/** @brief setup optical related registers - * start and pixels are expressed in optical sensor resolution coordinate - * space. - * @param dev device to use - * @param reg registers to set up - * @param exposure exposure time to use - * @param used_res scanning resolution used, may differ from - * scan's one - * @param start logical start pixel coordinate - * @param pixels logical number of pixels to use - * @param channels number of color channles used (1 or 3) - * @param depth bit depth of the scan (1, 8 or 16 bits) - * @param ccd_size_divisor SANE_TRUE specifies how much x coordinates must be shrunk - * @param color_filter to choose the color channel used in gray scans - * @param flags to drive specific settings such no calibration, XPA use ... - * @return SANE_STATUS_GOOD if OK - */ -static SANE_Status -gl843_init_optical_regs_scan (Genesys_Device * dev, - const Genesys_Sensor& sensor, - Genesys_Register_Set * reg, - unsigned int exposure, - int used_res, - unsigned int start, - unsigned int pixels, - int channels, - int depth, - unsigned ccd_size_divisor, - ColorFilter color_filter, - int flags) -{ - unsigned int words_per_line; - unsigned int startx, endx, used_pixels; - unsigned int dpiset, dpihw, factor; - unsigned int bytes; - unsigned int tgtime; /**> exposure time multiplier */ - unsigned int cksel; /**> clock per system pixel time in capturing image */ - GenesysRegister *r; - SANE_Status status = SANE_STATUS_GOOD; - - DBG(DBG_proc, "%s : exposure=%d, used_res=%d, start=%d, pixels=%d, channels=%d, depth=%d, " - "ccd_size_divisor=%d, flags=%x\n", __func__, exposure, used_res, start, pixels, channels, - depth, ccd_size_divisor, flags); - - /* tgtime */ - tgtime = exposure / 65536 + 1; - DBG(DBG_io2, "%s: tgtime=%d\n", __func__, tgtime); - - /* to manage high resolution device while keeping good - * low resolution scanning speed, we make hardware dpi vary */ - dpihw=sanei_genesys_compute_dpihw(dev, sensor, used_res); - factor=sensor.optical_res/dpihw; - DBG(DBG_io2, "%s: dpihw=%d (factor=%d)\n", __func__, dpihw, factor); - - /* sensor parameters */ - gl843_setup_sensor (dev, sensor, reg, dpihw, flags); - - /* resolution is divided according to CKSEL which is known once sensor is set up */ - r = sanei_genesys_get_address (reg, REG18); - cksel= (r->value & REG18_CKSEL)+1; - DBG(DBG_io2, "%s: cksel=%d\n", __func__, cksel); - dpiset = used_res * cksel; - - /* start and end coordinate in optical dpi coordinates */ - startx = (start + sensor.dummy_pixel)/cksel; - - used_pixels=pixels/cksel; - endx = startx + used_pixels; - - /* pixel coordinate factor correction when used dpihw is not maximal one */ - startx/=factor; - endx/=factor; - used_pixels=endx-startx; - - /* in case of stagger we have to start at an odd coordinate */ - if ((flags & OPTICAL_FLAG_STAGGER) - &&((startx & 1)==0)) - { - startx++; - endx++; - } - - status = gl843_set_fe(dev, sensor, AFE_SET); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to set frontend: %s\n", __func__, sane_strstatus(status)); - return status; - } - - /* enable shading */ - r = sanei_genesys_get_address (reg, REG01); - r->value &= ~REG01_SCAN; - if ((flags & OPTICAL_FLAG_DISABLE_SHADING) || (dev->model->flags & GENESYS_FLAG_NO_CALIBRATION)) - { - r->value &= ~REG01_DVDSET; - } - else - { - r->value |= REG01_DVDSET; - } - if(dpihw>600) - { - r->value |= REG01_SHDAREA; - } - else - { - r->value &= ~REG01_SHDAREA; - } - - r = sanei_genesys_get_address (reg, REG03); - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - r->value |= REG03_AVEENB; - else { - r->value &= ~REG03_AVEENB; - } - - // FIXME: we probably don't need to set exposure to registers at this point. It was this way - // before a refactor. - sanei_genesys_set_lamp_power(dev, sensor, *reg, !(flags & OPTICAL_FLAG_DISABLE_LAMP)); - - /* select XPA */ - r->value &= ~REG03_XPASEL; - if (flags & OPTICAL_FLAG_USE_XPA) - { - r->value |= REG03_XPASEL; - } - reg->state.is_xpa_on = flags & OPTICAL_FLAG_USE_XPA; - - /* BW threshold */ - r = sanei_genesys_get_address (reg, REG2E); - r->value = dev->settings.threshold; - r = sanei_genesys_get_address (reg, REG2F); - r->value = dev->settings.threshold; - - /* monochrome / color scan */ - r = sanei_genesys_get_address (reg, REG04); - switch (depth) - { - case 1: - r->value &= ~REG04_BITSET; - r->value |= REG04_LINEART; - break; - case 8: - r->value &= ~(REG04_LINEART | REG04_BITSET); - break; - case 16: - r->value &= ~REG04_LINEART; - r->value |= REG04_BITSET; - break; - } - - r->value &= ~(REG04_FILTER | REG04_AFEMOD); - if (channels == 1) - { - switch (color_filter) - { - case ColorFilter::RED: - r->value |= 0x14; - break; - case ColorFilter::BLUE: - r->value |= 0x1c; - break; - case ColorFilter::GREEN: - r->value |= 0x18; - break; - default: - break; // should not happen - } - } - else - r->value |= 0x10; /* mono */ - - /* register 05 */ - r = sanei_genesys_get_address (reg, REG05); - - /* set up dpihw */ - r->value &= ~REG05_DPIHW; - switch(dpihw) - { - case 600: - r->value |= REG05_DPIHW_600; - break; - case 1200: - r->value |= REG05_DPIHW_1200; - break; - case 2400: - r->value |= REG05_DPIHW_2400; - break; - case 4800: - r->value |= REG05_DPIHW_4800; - break; - } - - /* enable gamma tables */ - if (flags & OPTICAL_FLAG_DISABLE_GAMMA) - r->value &= ~REG05_GMMENB; - else - r->value |= REG05_GMMENB; - - sanei_genesys_set_double(reg, REG_DPISET, dpiset * ccd_size_divisor); - DBG(DBG_io2, "%s: dpiset used=%d\n", __func__, dpiset * ccd_size_divisor); - - sanei_genesys_set_double(reg, REG_STRPIXEL, startx); - sanei_genesys_set_double(reg, REG_ENDPIXEL, endx); - - /* words(16bit) before gamma, conversion to 8 bit or lineart */ - words_per_line = (used_pixels * dpiset) / dpihw; - bytes = depth / 8; - if (depth == 1) - { - words_per_line = (words_per_line >> 3) + ((words_per_line & 7) ? 1 : 0); - } - else - { - words_per_line *= bytes; - } - - dev->wpl = words_per_line; - dev->bpl = words_per_line; - - DBG(DBG_io2, "%s: used_pixels=%d\n", __func__, used_pixels); - DBG(DBG_io2, "%s: pixels =%d\n", __func__, pixels); - DBG(DBG_io2, "%s: depth =%d\n", __func__, depth); - DBG(DBG_io2, "%s: dev->bpl =%lu\n", __func__, (unsigned long) dev->bpl); - DBG(DBG_io2, "%s: dev->len =%lu\n", __func__, (unsigned long)dev->len); - DBG(DBG_io2, "%s: dev->dist =%lu\n", __func__, (unsigned long)dev->dist); - - words_per_line *= channels; - - /* MAXWD is expressed in 2 words unit */ - /* nousedspace = (mem_bank_range * 1024 / 256 -1 ) * 4; */ - sanei_genesys_set_triple(reg,REG_MAXWD,(words_per_line)>>1); - DBG(DBG_io2, "%s: words_per_line used=%d\n", __func__, words_per_line); - - sanei_genesys_set_double(reg,REG_LPERIOD,exposure/tgtime); - DBG(DBG_io2, "%s: exposure used=%d\n", __func__, exposure/tgtime); - - r = sanei_genesys_get_address (reg, REG_DUMMY); - r->value = sensor.dummy_pixel; - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - -struct ScanSession { - SetupParams params; - - // whether the session setup has been computed via gl843_compute_session() - bool computed = false; - - // whether CCD operates as half-resolution or full resolution at a specific resolution - unsigned ccd_size_divisor = 1; - - // the optical resolution of the scanner. - unsigned optical_resolution = 0; - - // the number of pixels at the optical resolution. - unsigned optical_pixels = 0; - - // the number of bytes in the output of a single line directly from scanner - unsigned optical_line_bytes = 0; - - // the resolution of the output data. - unsigned output_resolution = 0; - - // the number of pixels in output data - unsigned output_pixels = 0; - - // the number of bytes in the output of a single line - unsigned output_line_bytes = 0; - - // the number of lines in the output of the scanner. This must be larger than the user - // requested number due to line staggering and color channel shifting. - unsigned output_line_count = 0; - - // the number of staggered lines (i.e. lines that overlap during scanning due to line being - // thinner than the CCD element) - unsigned num_staggered_lines = 0; - - // the number of lines that color channels shift due to different physical positions of - // different color channels - unsigned max_color_shift_lines = 0; - - void assert_computed() const - { - if (!computed) { - throw std::runtime_error("ScanSession is not computed"); - } - } -}; - -static unsigned align_int_up(unsigned num, unsigned alignment) -{ - unsigned mask = alignment - 1; - if (num & mask) - num = (num & ~mask) + alignment; - return num; -} - -// computes physical parameters for specific scan setup -static void gl843_compute_session(Genesys_Device* dev, ScanSession& s, - const Genesys_Sensor& sensor) -{ - s.params.assert_valid(); - s.ccd_size_divisor = sensor.get_ccd_size_divisor_for_dpi(s.params.xres); - - s.optical_resolution = sensor.optical_res / s.ccd_size_divisor; - - if (s.params.flags & SCAN_FLAG_USE_OPTICAL_RES) { - s.output_resolution = s.optical_resolution; - } else { - // resolution is choosen from a fixed list and can be used directly - // unless we have ydpi higher than sensor's maximum one - if (s.params.xres > s.optical_resolution) - s.output_resolution = s.optical_resolution; - else - s.output_resolution = s.params.xres; - } - - // compute rounded up number of optical pixels - s.optical_pixels = (s.params.pixels * s.optical_resolution) / s.params.xres; - if (s.optical_pixels * s.params.xres < s.params.pixels * s.optical_resolution) - s.optical_pixels++; - - // ensure the number of optical pixels is divisible by 2. - // In quarter-CCD mode optical_pixels is 4x larger than the actual physical number - s.optical_pixels = align_int_up(s.optical_pixels, 2 * s.ccd_size_divisor); - - s.output_pixels = - (s.optical_pixels * s.output_resolution) / s.optical_resolution; - - // Note: staggering is not applied for calibration. Staggering starts at 2400 dpi - s.num_staggered_lines = 0; - if ((s.params.yres > 1200) && - ((s.params.flags & SCAN_FLAG_IGNORE_LINE_DISTANCE) == 0) && - (dev->model->flags & GENESYS_FLAG_STAGGERED_LINE)) - { - s.num_staggered_lines = (4 * s.params.yres) / dev->motor.base_ydpi; - } - - s.max_color_shift_lines = sanei_genesys_compute_max_shift(dev, s.params.channels, - s.params.yres, s.params.flags); - - s.output_line_count = s.params.lines + s.max_color_shift_lines + s.num_staggered_lines; - - s.optical_line_bytes = (s.optical_pixels * s.params.channels * s.params.depth) / 8; - s.output_line_bytes = (s.output_pixels * s.params.channels * s.params.depth) / 8; - s.computed = true; -} - -/* set up registers for an actual scan - * - * this function sets up the scanner to scan in normal or single line mode - */ -static SANE_Status gl843_init_scan_regs(Genesys_Device* dev, const Genesys_Sensor& sensor, - Genesys_Register_Set* reg, - ScanSession& session) -{ - session.assert_computed(); - - int start; - int move; - unsigned int oflags, mflags; /**> optical and motor flags */ - int exposure; - - int slope_dpi = 0; - int dummy = 0; - int scan_step_type = 1; - int scan_power_mode = 0; - size_t requested_buffer_size, read_buffer_size; - - SANE_Status status = SANE_STATUS_GOOD; - - DBG(DBG_info, "%s ", __func__); - debug_dump(DBG_info, session.params); - - DBG(DBG_info, "%s : stagger=%d lines\n", __func__, session.num_staggered_lines); - - /* we enable true gray for cis scanners only, and just when doing - * scan since color calibration is OK for this mode - */ - oflags = 0; - if (session.params.flags & SCAN_FLAG_DISABLE_SHADING) - oflags |= OPTICAL_FLAG_DISABLE_SHADING; - if (session.params.flags & SCAN_FLAG_DISABLE_GAMMA) - oflags |= OPTICAL_FLAG_DISABLE_GAMMA; - if (session.params.flags & SCAN_FLAG_DISABLE_LAMP) - oflags |= OPTICAL_FLAG_DISABLE_LAMP; - if (session.params.flags & SCAN_FLAG_CALIBRATION) - oflags |= OPTICAL_FLAG_DISABLE_DOUBLE; - if (session.num_staggered_lines) - oflags |= OPTICAL_FLAG_STAGGER; - if (session.params.flags & SCAN_FLAG_USE_XPA) - oflags |= OPTICAL_FLAG_USE_XPA; - - - /* compute scan parameters values */ - /* pixels are allways given at full optical resolution */ - /* use detected left margin and fixed value */ - /* start */ - start = session.params.startx; - - dummy = 0; - /* dummy = 1; XXX STEF XXX */ - - /* slope_dpi */ - /* cis color scan is effectively a gray scan with 3 gray lines per color line and a FILTER of 0 */ - if (dev->model->is_cis) - slope_dpi = session.params.yres * session.params.channels; - else - slope_dpi = session.params.yres; - slope_dpi = slope_dpi * (1 + dummy); - - /* scan_step_type */ - exposure = sensor.exposure_lperiod; - if (exposure < 0) { - throw std::runtime_error("Exposure not defined in sensor definition"); - } - scan_step_type = sanei_genesys_compute_step_type(gl843_motors, dev->model->motor_type, exposure); - - DBG(DBG_info, "%s : exposure=%d pixels\n", __func__, exposure); - DBG(DBG_info, "%s : scan_step_type=%d\n", __func__, scan_step_type); - - /*** optical parameters ***/ - /* in case of dynamic lineart, we use an internal 8 bit gray scan - * to generate 1 lineart data */ - if (session.params.flags & SCAN_FLAG_DYNAMIC_LINEART) { - session.params.depth = 8; - } - - /* no 16 bit gamma for this ASIC */ - if (session.params.depth == 16) - { - session.params.flags |= SCAN_FLAG_DISABLE_GAMMA; - oflags |= OPTICAL_FLAG_DISABLE_GAMMA; - } - - /* now _LOGICAL_ optical values used are known, setup registers */ - status = gl843_init_optical_regs_scan (dev, sensor, - reg, - exposure, - session.output_resolution, - start, - session.optical_pixels, - session.params.channels, - session.params.depth, - session.ccd_size_divisor, - session.params.color_filter, - oflags); - if (status != SANE_STATUS_GOOD) - return status; - - /*** motor parameters ***/ - - /* it seems base_dpi of the G4050 motor is changed above 600 dpi*/ - if (dev->model->motor_type == MOTOR_G4050 && session.params.yres>600) - { - dev->ld_shift_r = (dev->model->ld_shift_r*3800)/dev->motor.base_ydpi; - dev->ld_shift_g = (dev->model->ld_shift_g*3800)/dev->motor.base_ydpi; - dev->ld_shift_b = (dev->model->ld_shift_b*3800)/dev->motor.base_ydpi; - } - else - { - dev->ld_shift_r = dev->model->ld_shift_r; - dev->ld_shift_g = dev->model->ld_shift_g; - dev->ld_shift_b = dev->model->ld_shift_b; - } - - /* add tl_y to base movement */ - move = session.params.starty; - DBG(DBG_info, "%s: move=%d steps\n", __func__, move); - - - mflags=0; - if(session.params.flags & SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE) - mflags|=MOTOR_FLAG_DISABLE_BUFFER_FULL_MOVE; - if(session.params.flags & SCAN_FLAG_FEEDING) - mflags|=MOTOR_FLAG_FEED; - if (session.params.flags & SCAN_FLAG_USE_XPA) - mflags |= MOTOR_FLAG_USE_XPA; - - status = gl843_init_motor_regs_scan (dev, sensor, - reg, - exposure, - slope_dpi, - scan_step_type, - dev->model->is_cis ? session.output_line_count * session.params.channels - : session.output_line_count, - dummy, - move, - scan_power_mode, - mflags); - if (status != SANE_STATUS_GOOD) - return status; - - /* since we don't have sheetfed scanners to handle, - * use huge read buffer */ - /* TODO find the best size according to settings */ - requested_buffer_size = 16 * session.output_line_bytes; - - read_buffer_size = - 2 * requested_buffer_size + - (session.max_color_shift_lines + session.num_staggered_lines) * session.optical_line_bytes; - - dev->read_buffer.clear(); - dev->read_buffer.alloc(read_buffer_size); - - dev->lines_buffer.clear(); - dev->lines_buffer.alloc(read_buffer_size); - - dev->shrink_buffer.clear(); - dev->shrink_buffer.alloc(requested_buffer_size); - - dev->out_buffer.clear(); - dev->out_buffer.alloc((8 * session.params.pixels * session.params.channels * - session.params.depth) / 8); - - dev->read_bytes_left = session.output_line_bytes * session.output_line_count; - - DBG(DBG_info, "%s: physical bytes to read = %lu\n", __func__, (u_long) dev->read_bytes_left); - dev->read_active = SANE_TRUE; - - dev->current_setup.params = session.params; - dev->current_setup.pixels = session.output_pixels; - DBG(DBG_info, "%s: current_setup.pixels=%d\n", __func__, dev->current_setup.pixels); - dev->current_setup.lines = session.output_line_count; - dev->current_setup.depth = session.params.depth; - dev->current_setup.channels = session.params.channels; - dev->current_setup.exposure_time = exposure; - dev->current_setup.xres = session.output_resolution; - dev->current_setup.yres = session.params.yres; - dev->current_setup.ccd_size_divisor = session.ccd_size_divisor; - dev->current_setup.stagger = session.num_staggered_lines; - dev->current_setup.max_shift = session.max_color_shift_lines + session.num_staggered_lines; - - dev->total_bytes_read = 0; - if (session.params.depth == 1) { - dev->total_bytes_to_read = ((session.params.pixels * session.params.lines) / 8 + - (((session.params.pixels * session.params.lines) % 8) ? 1 : 0)) * - session.params.channels; - } else { - dev->total_bytes_to_read = session.params.pixels * session.params.lines * - session.params.channels * (session.params.depth / 8); - } - - DBG(DBG_info, "%s: total bytes to send = %lu\n", __func__, (u_long) dev->total_bytes_to_read); - - DBG(DBG_proc, "%s: completed\n", __func__); - return SANE_STATUS_GOOD; -} - -static void -gl843_calculate_current_setup(Genesys_Device * dev, const Genesys_Sensor& sensor) -{ - int channels; - int depth; - int start; - - int used_res; - int used_pixels; - unsigned int lincnt; - int exposure; - int stagger; - - int max_shift; - - int optical_res; - - DBG(DBG_info, "%s ", __func__); - debug_dump(DBG_info, dev->settings); - - /* we have 2 domains for ccd: xres below or above half ccd max dpi */ - unsigned ccd_size_divisor = sensor.get_ccd_size_divisor_for_dpi(dev->settings.xres); - - /* channels */ - if (dev->settings.scan_mode == ScanColorMode::COLOR_SINGLE_PASS) - channels = 3; - else - channels = 1; - - /* depth */ - depth = dev->settings.depth; - if (dev->settings.scan_mode == ScanColorMode::LINEART) - depth = 1; - - /* start */ - if(dev->settings.scan_method==ScanMethod::TRANSPARENCY) - start = SANE_UNFIX (dev->model->x_offset_ta); - else - start = SANE_UNFIX (dev->model->x_offset); - - start /= ccd_size_divisor; - - start += dev->settings.tl_x; - start = (start * sensor.optical_res) / MM_PER_INCH; - - SetupParams params; - params.xres = dev->settings.xres; - params.yres = dev->settings.yres; - params.startx = start; // not used - params.starty = 0; // not used - params.pixels = dev->settings.pixels; - params.lines = dev->settings.lines; - params.depth = depth; - params.channels = channels; - params.scan_method = dev->settings.scan_method; - params.scan_mode = dev->settings.scan_mode; - params.color_filter = dev->settings.color_filter; - params.flags = 0; - - DBG(DBG_info, "%s ", __func__); - debug_dump(DBG_info, params); - - /* optical_res */ - optical_res = sensor.optical_res / ccd_size_divisor; - - /* stagger */ - if (ccd_size_divisor == 1 && (dev->model->flags & GENESYS_FLAG_STAGGERED_LINE)) - stagger = (4 * params.yres) / dev->motor.base_ydpi; - else - stagger = 0; - DBG(DBG_info, "%s: stagger=%d lines\n", __func__, stagger); - - if (params.xres <= (unsigned) optical_res) { - used_res = params.xres; - } else { - used_res = optical_res; - } - - /* compute scan parameters values */ - /* pixels are allways given at half or full CCD optical resolution */ - /* use detected left margin and fixed value */ - - /* compute correct pixels number */ - used_pixels = (params.pixels * optical_res) / params.xres; - DBG(DBG_info, "%s: used_pixels=%d\n", __func__, used_pixels); - - /* exposure */ - exposure = sensor.exposure_lperiod; - if (exposure < 0) { - throw std::runtime_error("Exposure not defined in sensor definition"); - } - DBG(DBG_info, "%s : exposure=%d pixels\n", __func__, exposure); - - /* it seems base_dpi of the G4050 motor is changed above 600 dpi*/ - if (dev->model->motor_type == MOTOR_G4050 && params.yres>600) - { - dev->ld_shift_r = (dev->model->ld_shift_r*3800)/dev->motor.base_ydpi; - dev->ld_shift_g = (dev->model->ld_shift_g*3800)/dev->motor.base_ydpi; - dev->ld_shift_b = (dev->model->ld_shift_b*3800)/dev->motor.base_ydpi; - } - else - { - dev->ld_shift_r = dev->model->ld_shift_r; - dev->ld_shift_g = dev->model->ld_shift_g; - dev->ld_shift_b = dev->model->ld_shift_b; - } - - /* scanned area must be enlarged by max color shift needed */ - max_shift = sanei_genesys_compute_max_shift(dev, params.channels, params.yres, 0); - - /* lincnt */ - lincnt = params.lines + max_shift + stagger; - - dev->current_setup.params = params; - dev->current_setup.pixels = (used_pixels * used_res) / optical_res; - DBG(DBG_info, "%s: current_setup.pixels=%d\n", __func__, dev->current_setup.pixels); - dev->current_setup.lines = lincnt; - dev->current_setup.depth = params.depth; - dev->current_setup.channels = params.channels; - dev->current_setup.exposure_time = exposure; - dev->current_setup.xres = used_res; - dev->current_setup.yres = params.yres; - dev->current_setup.ccd_size_divisor = ccd_size_divisor; - dev->current_setup.stagger = stagger; - dev->current_setup.max_shift = max_shift + stagger; - - DBG(DBG_proc, "%s: completed\n", __func__); -} - -/** - * for fast power saving methods only, like disabling certain amplifiers - * @param dev device to use - * @param enable true to set inot powersaving - * */ -static SANE_Status -gl843_save_power (Genesys_Device * dev, SANE_Bool enable) -{ - uint8_t val; - SANE_Status status = SANE_STATUS_GOOD; - - DBG(DBG_proc, "%s: enable = %d\n", __func__, enable); - if (dev == NULL) - return SANE_STATUS_INVAL; - - /* switch KV-SS080 lamp off */ - if (dev->model->gpo_type == GPO_KVSS080) - { - RIE(sanei_genesys_read_register (dev, REG6C, &val)); - if(enable) - val &= 0xef; - else - val |= 0x10; - RIE(sanei_genesys_write_register(dev,REG6C,val)); - } - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - -static SANE_Status -gl843_set_powersaving (Genesys_Device * dev, int delay /* in minutes */ ) -{ - SANE_Status status = SANE_STATUS_GOOD; - - DBG(DBG_proc, "%s (delay = %d)\n", __func__, delay); - if (dev == NULL) - return SANE_STATUS_INVAL; - - DBGCOMPLETED; - return status; -} - -static SANE_Status -gl843_start_action (Genesys_Device * dev) -{ - return sanei_genesys_write_register (dev, 0x0f, 0x01); -} - -static SANE_Status -gl843_stop_action_no_move(Genesys_Device* dev, Genesys_Register_Set* reg) -{ - uint8_t val = sanei_genesys_read_reg_from_set(reg, REG01); - val &= ~REG01_SCAN; - sanei_genesys_set_reg_from_set(reg, REG01, val); - SANE_Status ret = sanei_genesys_write_register(dev, REG01, val); - sanei_genesys_sleep_ms(100); - return ret; -} - -static SANE_Status -gl843_stop_action (Genesys_Device * dev) -{ - SANE_Status status = SANE_STATUS_GOOD; - uint8_t val40, val; - unsigned int loop; - - DBG(DBG_proc, "%s\n", __func__); - - status = sanei_genesys_get_status (dev, &val); - if (DBG_LEVEL >= DBG_io) - { - sanei_genesys_print_status (val); - } - - val40 = 0; - status = sanei_genesys_read_register (dev, REG40, &val40); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to read home sensor: %s\n", __func__, sane_strstatus(status)); - DBG(DBG_proc, "%s: completed\n", __func__); - return status; - } - - /* only stop action if needed */ - if (!(val40 & REG40_DATAENB) && !(val40 & REG40_MOTMFLG)) - { - DBG(DBG_info, "%s: already stopped\n", __func__); - DBG(DBG_proc, "%s: completed\n", __func__); - return SANE_STATUS_GOOD; - } - - /* ends scan 646 */ - val = dev->reg.get8(REG01); - val &= ~REG01_SCAN; - dev->reg.set8(REG01, val); - status = sanei_genesys_write_register (dev, REG01, val); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to write register 01: %s\n", __func__, sane_strstatus(status)); - return status; - } - sanei_genesys_sleep_ms(100); - - loop = 10; - while (loop > 0) - { - status = sanei_genesys_get_status (dev, &val); - if (DBG_LEVEL >= DBG_io) - { - sanei_genesys_print_status (val); - } - val40 = 0; - status = sanei_genesys_read_register (dev, 0x40, &val40); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to read home sensor: %s\n", __func__, sane_strstatus(status)); - DBGCOMPLETED; - return status; - } - - /* if scanner is in command mode, we are done */ - if (!(val40 & REG40_DATAENB) && !(val40 & REG40_MOTMFLG) - && !(val & REG41_MOTORENB)) - { - DBGCOMPLETED; - return SANE_STATUS_GOOD; - } - - sanei_genesys_sleep_ms(100); - loop--; - } - - DBGCOMPLETED; - return SANE_STATUS_IO_ERROR; -} - -static SANE_Status -gl843_get_paper_sensor (Genesys_Device * dev, SANE_Bool * paper_loaded) -{ - SANE_Status status = SANE_STATUS_GOOD; - uint8_t val; - - status = sanei_genesys_read_register (dev, REG6D, &val); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to read gpio: %s\n", __func__, sane_strstatus(status)); - return status; - } - *paper_loaded = (val & 0x1) == 0; - return SANE_STATUS_GOOD; - - return SANE_STATUS_INVAL; -} - -static SANE_Status -gl843_eject_document (Genesys_Device * dev) -{ - DBG(DBG_proc, "%s: not implemented \n", __func__); - if (dev == NULL) - return SANE_STATUS_INVAL; - return SANE_STATUS_GOOD; -} - - -static SANE_Status -gl843_load_document (Genesys_Device * dev) -{ - DBG(DBG_proc, "%s: not implemented \n", __func__); - if (dev == NULL) - return SANE_STATUS_INVAL; - return SANE_STATUS_GOOD; -} - -/** - * detects end of document and adjust current scan - * to take it into account - * used by sheetfed scanners - */ -static SANE_Status -gl843_detect_document_end (Genesys_Device * dev) -{ - SANE_Status status = SANE_STATUS_GOOD; - SANE_Bool paper_loaded; - unsigned int scancnt = 0; - int flines, channels, depth, bytes_remain, sublines, - bytes_to_flush, lines, sub_bytes, tmp, read_bytes_left; - DBG(DBG_proc, "%s: begin\n", __func__); - - RIE (gl843_get_paper_sensor (dev, &paper_loaded)); - - /* sheetfed scanner uses home sensor as paper present */ - if ((dev->document == SANE_TRUE) && !paper_loaded) - { - DBG(DBG_info, "%s: no more document\n", __func__); - dev->document = SANE_FALSE; - - channels = dev->current_setup.channels; - depth = dev->current_setup.depth; - read_bytes_left = (int) dev->read_bytes_left; - DBG(DBG_io, "%s: read_bytes_left=%d\n", __func__, read_bytes_left); - - /* get lines read */ - try { - status = sanei_genesys_read_scancnt(dev, &scancnt); - } catch (...) { - flines = 0; - } - if (status != SANE_STATUS_GOOD) - { - flines = 0; - } - else - { - /* compute number of line read */ - tmp = (int) dev->total_bytes_read; - if (depth == 1 || dev->settings.scan_mode == ScanColorMode::LINEART) - flines = tmp * 8 / dev->settings.pixels / channels; - else - flines = tmp / (depth / 8) / dev->settings.pixels / channels; - - /* number of scanned lines, but no read yet */ - flines = scancnt - flines; - - DBG(DBG_io, "%s: %d scanned but not read lines\n", __func__, flines); - } - - /* adjust number of bytes to read - * we need to read the final bytes which are word per line * number of last lines - * to have doc leaving feeder */ - lines = - (SANE_UNFIX (dev->model->post_scan) * dev->current_setup.yres) / - MM_PER_INCH + flines; - DBG(DBG_io, "%s: adding %d line to flush\n", __func__, lines); - - /* number of bytes to read from scanner to get document out of it after - * end of document dectected by hardware sensor */ - bytes_to_flush = lines * dev->wpl; - - /* if we are already close to end of scan, flushing isn't needed */ - if (bytes_to_flush < read_bytes_left) - { - /* we take all these step to work around an overflow on some plateforms */ - tmp = (int) dev->total_bytes_read; - DBG (DBG_io, "%s: tmp=%d\n", __func__, tmp); - bytes_remain = (int) dev->total_bytes_to_read; - DBG(DBG_io, "%s: bytes_remain=%d\n", __func__, bytes_remain); - bytes_remain = bytes_remain - tmp; - DBG(DBG_io, "%s: bytes_remain=%d\n", __func__, bytes_remain); - - /* remaining lines to read by frontend for the current scan */ - if (depth == 1 || dev->settings.scan_mode == ScanColorMode::LINEART) - { - flines = bytes_remain * 8 / dev->settings.pixels / channels; - } - else - flines = bytes_remain / (depth / 8) - / dev->settings.pixels / channels; - DBG(DBG_io, "%s: flines=%d\n", __func__, flines); - - if (flines > lines) - { - /* change the value controlling communication with the frontend : - * total bytes to read is current value plus the number of remaining lines - * multiplied by bytes per line */ - sublines = flines - lines; - - if (depth == 1 || dev->settings.scan_mode == ScanColorMode::LINEART) - sub_bytes = - ((dev->settings.pixels * sublines) / 8 + - (((dev->settings.pixels * sublines) % 8) ? 1 : 0)) * - channels; - else - sub_bytes = - dev->settings.pixels * sublines * channels * (depth / 8); - - dev->total_bytes_to_read -= sub_bytes; - - /* then adjust the physical bytes to read */ - if (read_bytes_left > sub_bytes) - { - dev->read_bytes_left -= sub_bytes; - } - else - { - dev->total_bytes_to_read = dev->total_bytes_read; - dev->read_bytes_left = 0; - } - - DBG(DBG_io, "%s: sublines=%d\n", __func__, sublines); - DBG(DBG_io, "%s: subbytes=%d\n", __func__, sub_bytes); - DBG(DBG_io, "%s: total_bytes_to_read=%lu\n", __func__, - (unsigned long) dev->total_bytes_to_read); - DBG(DBG_io, "%s: read_bytes_left=%d\n", __func__, read_bytes_left); - } - } - else - { - DBG(DBG_io, "%s: no flushing needed\n", __func__); - } - } - - DBG(DBG_proc, "%s: finished\n", __func__); - return SANE_STATUS_GOOD; -} - -// enables or disables XPA slider motor -static SANE_Status gl843_set_xpa_motor_power(Genesys_Device *dev, bool set) -{ - uint8_t val; - SANE_Status status=SANE_STATUS_GOOD; - - DBGSTART; - - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) { - - if (set) { - RIE(sanei_genesys_read_register(dev, REG6C, &val)); - val &= ~REG6C_GPIO14; - if (dev->current_setup.xres >= 2400) { - val |= REG6C_GPIO10; - } - RIE(sanei_genesys_write_register(dev, REG6C, val)); - - RIE(sanei_genesys_read_register(dev, REGA6, &val)); - val |= REGA6_GPIO17; - RIE(sanei_genesys_write_register(dev, REGA6,val)); - } else { - RIE(sanei_genesys_read_register(dev, REG6C, &val)); - val |= REG6C_GPIO14; - val &= ~REG6C_GPIO10; - RIE(sanei_genesys_write_register(dev, REG6C, val)); - - RIE(sanei_genesys_read_register(dev, REGA6, &val)); - val &= ~REGA6_GPIO17; - RIE(sanei_genesys_write_register(dev, REGA6,val)); - } - DBGCOMPLETED; - return status; - } - - if (dev->model->model_id == MODEL_HP_SCANJET_G4050) { - - if (set) { - /* set MULTFILM et GPOADF */ - RIE (sanei_genesys_read_register (dev, REG6B, &val)); - val |=REG6B_MULTFILM|REG6B_GPOADF; - RIE (sanei_genesys_write_register (dev, REG6B, val)); - - RIE (sanei_genesys_read_register (dev, REG6C, &val)); - val &= ~REG6C_GPIO15; - RIE (sanei_genesys_write_register (dev, REG6C, val)); - - /* Motor power ? No move at all without this one */ - RIE (sanei_genesys_read_register (dev, REGA6, &val)); - val |= REGA6_GPIO20; - RIE (sanei_genesys_write_register(dev,REGA6,val)); - - RIE (sanei_genesys_read_register (dev, REGA8, &val)); - val &= ~REGA8_GPO27; - RIE (sanei_genesys_write_register (dev, REGA8, val)); - - RIE (sanei_genesys_read_register (dev, REGA9, &val)); - val |= REGA9_GPO32|REGA9_GPO31; - RIE (sanei_genesys_write_register (dev, REGA9, val)); - } else { - /* unset GPOADF */ - RIE (sanei_genesys_read_register (dev, REG6B, &val)); - val &= ~REG6B_GPOADF; - RIE (sanei_genesys_write_register (dev, REG6B, val)); - - RIE (sanei_genesys_read_register (dev, REGA8, &val)); - val |= REGA8_GPO27; - RIE (sanei_genesys_write_register (dev, REGA8, val)); - - RIE (sanei_genesys_read_register (dev, REGA9, &val)); - val &= ~REGA9_GPO31; - RIE (sanei_genesys_write_register (dev, REGA9, val)); - } - DBGCOMPLETED; - return status; - } - - DBGCOMPLETED; - return status; -} - - -/** @brief light XPA lamp - * toggle gpios to switch off regular lamp and light on the - * XPA light - * @param dev device to set up - */ -static SANE_Status gl843_set_xpa_lamp_power(Genesys_Device *dev, bool set) -{ - SANE_Status status = SANE_STATUS_GOOD; - uint8_t val = 0; - DBGSTART; - - if (set) { - RIE(sanei_genesys_read_register(dev, REGA6, &val)); - - // cut regular lamp power - val &= ~(REGA6_GPIO24 | REGA6_GPIO23); - - // set XPA lamp power - val |= REGA6_GPIO22 | REGA6_GPIO21 | REGA6_GPIO19; - - RIE(sanei_genesys_write_register(dev, REGA6, val)); - - RIE(sanei_genesys_read_register(dev, REGA7, &val)); - val|=REGA7_GPOE24; /* lamp 1 off GPOE 24 */ - val|=REGA7_GPOE23; /* lamp 2 off GPOE 23 */ - val|=REGA7_GPOE22; /* full XPA lamp power */ - RIE(sanei_genesys_write_register(dev, REGA7, val)); - } else { - RIE(sanei_genesys_read_register(dev, REGA6, &val)); - - // switch on regular lamp - val |= REGA6_GPIO23; - - // no XPA lamp power (2 bits for level: __11 ____) - val &= ~(REGA6_GPIO22 | REGA6_GPIO21); - - RIE(sanei_genesys_write_register(dev, REGA6, val)); - } - - DBGCOMPLETED; - return status; -} - -/* Send the low-level scan command */ -static SANE_Status -gl843_begin_scan (Genesys_Device * dev, const Genesys_Sensor& sensor, Genesys_Register_Set * reg, - SANE_Bool start_motor) -{ - SANE_Status status = SANE_STATUS_GOOD; - uint8_t val; - uint16_t dpiset, dpihw; - - DBGSTART; - - /* get back the target dpihw */ - sanei_genesys_get_double (reg, REG_DPISET, &dpiset); - dpihw = sanei_genesys_compute_dpihw(dev, sensor, dpiset); - - /* set up GPIO for scan */ - switch(dev->model->gpo_type) - { - /* KV case */ - case GPO_KVSS080: - RIE (sanei_genesys_write_register (dev, REGA9, 0x00)); - RIE (sanei_genesys_write_register (dev, REGA6, 0xf6)); - /* blinking led */ - RIE (sanei_genesys_write_register (dev, 0x7e, 0x04)); - break; - case GPO_G4050: - RIE (sanei_genesys_write_register (dev, REGA7, 0xfe)); - RIE (sanei_genesys_write_register (dev, REGA8, 0x3e)); - RIE (sanei_genesys_write_register (dev, REGA9, 0x06)); - switch (dpihw) - { - case 1200: - case 2400: - case 4800: - RIE (sanei_genesys_write_register (dev, REG6C, 0x60)); - RIE (sanei_genesys_write_register (dev, REGA6, 0x46)); - break; - default: /* 600 dpi case */ - RIE (sanei_genesys_write_register (dev, REG6C, 0x20)); - RIE (sanei_genesys_write_register (dev, REGA6, 0x44)); - } - - if (reg->state.is_xpa_on && reg->state.is_lamp_on) { - RIE(gl843_set_xpa_lamp_power(dev, true)); - } - - if (reg->state.is_xpa_on) { - dev->needs_home_ta = SANE_TRUE; - RIE(gl843_set_xpa_motor_power(dev, true)); - } - - /* blinking led */ - RIE (sanei_genesys_write_register (dev, REG7E, 0x01)); - break; - case GPO_CS8600F: - if (reg->state.is_xpa_on) { - dev->needs_home_ta = SANE_TRUE; - RIE(gl843_set_xpa_motor_power(dev, true)); - } - break; - case GPO_CS4400F: - case GPO_CS8400F: - default: - break; - } - - /* clear scan and feed count */ - RIE (sanei_genesys_write_register - (dev, REG0D, REG0D_CLRLNCNT | REG0D_CLRMCNT)); - - /* enable scan and motor */ - RIE (sanei_genesys_read_register (dev, REG01, &val)); - val |= REG01_SCAN; - RIE (sanei_genesys_write_register (dev, REG01, val)); - - if (start_motor) - { - RIE (sanei_genesys_write_register (dev, REG0F, 1)); - } - else - { - RIE (sanei_genesys_write_register (dev, REG0F, 0)); - } - - DBGCOMPLETED; - return status; -} - - -/* Send the stop scan command */ -static SANE_Status -gl843_end_scan (Genesys_Device * dev, Genesys_Register_Set * reg, - SANE_Bool check_stop) -{ - SANE_Status status = SANE_STATUS_GOOD; - - DBG(DBG_proc, "%s (check_stop = %d)\n", __func__, check_stop); - if (reg == NULL) - return SANE_STATUS_INVAL; - - /* post scan gpio */ - RIE(sanei_genesys_write_register(dev,0x7e,0x00)); - - // turn off XPA lamp if needed - // BUG: the if condition below probably shouldn't be enabled when XPA is off - if (reg->state.is_xpa_on || reg->state.is_lamp_on) { - gl843_set_xpa_lamp_power(dev, false); - } - - if (dev->model->is_sheetfed == SANE_TRUE) - { - status = SANE_STATUS_GOOD; - } - else /* flat bed scanners */ - { - status = gl843_stop_action (dev); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to stop: %s\n", __func__, sane_strstatus(status)); - return status; - } - } - - DBGCOMPLETED; - return status; -} - -/** @brief park XPA lamp - * park the XPA lamp if needed - */ -static SANE_Status gl843_park_xpa_lamp (Genesys_Device * dev) -{ - Genesys_Register_Set local_reg; - SANE_Status status = SANE_STATUS_GOOD; - GenesysRegister *r; - uint8_t val; - int loop = 0; - - DBGSTART; - - /* copy scan settings */ - local_reg = dev->reg; - - /* set a huge feedl and reverse direction */ - sanei_genesys_set_triple(&local_reg,REG_FEEDL,0xbdcd); - - /* clear scan and feed count */ - RIE (sanei_genesys_write_register (dev, REG0D, REG0D_CLRLNCNT | REG0D_CLRMCNT)); - - /* set up for reverse and no scan */ - r = sanei_genesys_get_address (&local_reg, REG02); - r->value |= REG02_MTRREV; - r = sanei_genesys_get_address (&local_reg, REG01); - r->value &= ~REG01_SCAN; - - /* write to scanner and start action */ - RIE (dev->model->cmd_set->bulk_write_register(dev, local_reg)); - RIE(gl843_set_xpa_motor_power(dev, true)); - try { - status = gl843_start_action (dev); - } catch (...) { - DBG(DBG_error, "%s: failed to start motor: %s\n", __func__, sane_strstatus(status)); - try { - gl843_stop_action(dev); - } catch (...) {} - try { - // restore original registers - dev->model->cmd_set->bulk_write_register(dev, dev->reg); - } catch (...) {} - throw; - } - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to start motor: %s\n", __func__, sane_strstatus(status)); - gl843_stop_action (dev); - /* restore original registers */ - dev->model->cmd_set->bulk_write_register(dev, dev->reg); - return status; - } - - while (loop < 600) /* do not wait longer then 60 seconds */ - { - status = sanei_genesys_get_status (dev, &val); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to read home sensor: %s\n", __func__, - sane_strstatus(status)); - return status; - } - if (DBG_LEVEL >= DBG_io2) - { - sanei_genesys_print_status (val); - } - - if (val & REG41_HOMESNR) /* home sensor */ - { - DBG(DBG_info, "%s: reached home position\n", __func__); - DBG(DBG_proc, "%s: finished\n", __func__); - - gl843_set_xpa_motor_power(dev, false); - dev->needs_home_ta = SANE_FALSE; - - return SANE_STATUS_GOOD; - } - sanei_genesys_sleep_ms(100); - ++loop; - } - - /* we are not parked here.... should we fail ? */ - DBG(DBG_info, "%s: XPA lamp is not parked\n", __func__); - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - -/** @brief Moves the slider to the home (top) position slowly - * */ -static SANE_Status -gl843_slow_back_home (Genesys_Device * dev, SANE_Bool wait_until_home) -{ - Genesys_Register_Set local_reg; - SANE_Status status = SANE_STATUS_GOOD; - GenesysRegister *r; - uint8_t val; - float resolution; - int loop = 0; - - DBG(DBG_proc, "%s (wait_until_home = %d)\n", __func__, wait_until_home); - - if (dev->needs_home_ta) { - RIE(gl843_park_xpa_lamp(dev)); - } - - /* regular slow back home */ - dev->scanhead_position_in_steps = 0; - - /* first read gives HOME_SENSOR true */ - status = sanei_genesys_get_status (dev, &val); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to read home sensor: %s\n", __func__, sane_strstatus(status)); - return status; - } - sanei_genesys_sleep_ms(100); - - /* second is reliable */ - status = sanei_genesys_get_status (dev, &val); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to read home sensor: %s\n", __func__, sane_strstatus(status)); - return status; - } - if (DBG_LEVEL >= DBG_io) - { - sanei_genesys_print_status (val); - } - if (val & HOMESNR) /* is sensor at home? */ - { - DBGCOMPLETED; - return SANE_STATUS_GOOD; - } - - local_reg = dev->reg; - resolution=sanei_genesys_get_lowest_ydpi(dev); - - const auto& sensor = sanei_genesys_find_sensor(dev, resolution); - - ScanSession session; - session.params.xres = resolution; - session.params.yres = resolution; - session.params.startx = 100; - session.params.starty = 40000; - session.params.pixels = 100; - session.params.lines = 100; - session.params.depth = 8; - session.params.channels = 1; - session.params.scan_method = dev->settings.scan_method; - session.params.scan_mode = ScanColorMode::LINEART; - session.params.color_filter = dev->settings.color_filter; - session.params.flags = SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE | - SCAN_FLAG_IGNORE_LINE_DISTANCE; - gl843_compute_session(dev, session, sensor); - - status = gl843_init_scan_regs(dev, sensor, &local_reg, session); - - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to set up registers: %s\n", __func__, sane_strstatus(status)); - DBGCOMPLETED; - return status; - } - - /* clear scan and feed count */ - RIE (sanei_genesys_write_register (dev, REG0D, REG0D_CLRLNCNT | REG0D_CLRMCNT)); - - /* set up for reverse and no scan */ - r = sanei_genesys_get_address(&local_reg, REG02); - r->value |= REG02_MTRREV; - r = sanei_genesys_get_address(&local_reg, REG01); - r->value &= ~REG01_SCAN; - - RIE (dev->model->cmd_set->bulk_write_register(dev, local_reg)); - - try { - status = gl843_start_action (dev); - } catch (...) { - DBG(DBG_error, "%s: failed to start motor: %s\n", __func__, sane_strstatus(status)); - try { - gl843_stop_action(dev); - } catch (...) {} - try { - // restore original registers - dev->model->cmd_set->bulk_write_register(dev, dev->reg); - } catch (...) {} - throw; - } - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to start motor: %s\n", __func__, sane_strstatus(status)); - gl843_stop_action (dev); - /* restore original registers */ - dev->model->cmd_set->bulk_write_register(dev, dev->reg); - return status; - } - - if (wait_until_home) - { - - while (loop < 300) /* do not wait longer then 30 seconds */ - { - status = sanei_genesys_get_status (dev, &val); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to read home sensor: %s\n", __func__, - sane_strstatus(status)); - return status; - } - if (DBG_LEVEL >= DBG_io2) - { - sanei_genesys_print_status (val); - } - - if (val & REG41_HOMESNR) /* home sensor */ - { - DBG(DBG_info, "%s: reached home position\n", __func__); - DBG(DBG_proc, "%s: finished\n", __func__); - return SANE_STATUS_GOOD; - } - sanei_genesys_sleep_ms(100); - ++loop; - } - - /* when we come here then the scanner needed too much time for this, so we better stop the motor */ - gl843_stop_action (dev); - DBG(DBG_error, "%s: timeout while waiting for scanhead to go home\n", __func__); - return SANE_STATUS_IO_ERROR; - } - - DBG(DBG_info, "%s: scanhead is still moving\n", __func__); - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - -/* Automatically set top-left edge of the scan area by scanning a 200x200 pixels - area at 600 dpi from very top of scanner */ -static SANE_Status -gl843_search_start_position (Genesys_Device * dev) -{ - int size; - SANE_Status status = SANE_STATUS_GOOD; - Genesys_Register_Set local_reg; - int steps; - - int pixels = 600; - int dpi = 300; - - DBG(DBG_proc, "%s\n", __func__); - - local_reg = dev->reg; - - /* sets for a 200 lines * 600 pixels */ - /* normal scan with no shading */ - - // FIXME: the current approach of doing search only for one resolution does not work on scanners - // whith employ different sensors with potentially different settings. - auto& sensor = sanei_genesys_find_sensor_for_write(dev, dpi); - - ScanSession session; - session.params.xres = dpi; - session.params.yres = dpi; - session.params.startx = 0; - session.params.starty = 0; // we should give a small offset here - ~60 steps - session.params.pixels = 600; - session.params.lines = dev->model->search_lines; - session.params.depth = 8; - session.params.channels = 1; - session.params.scan_method = dev->settings.scan_method; - session.params.scan_mode = ScanColorMode::GRAY; - session.params.color_filter = ColorFilter::GREEN; - session.params.flags = SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_IGNORE_LINE_DISTANCE | - SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE; - gl843_compute_session(dev, session, sensor); - - status = gl843_init_scan_regs(dev, sensor, &local_reg, session); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to bulk setup registers: %s\n", __func__, sane_strstatus(status)); - return status; - } - - /* send to scanner */ - status = dev->model->cmd_set->bulk_write_register(dev, local_reg); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to bulk write registers: %s\n", __func__, sane_strstatus(status)); - return status; - } - - size = dev->read_bytes_left; - - std::vector<uint8_t> data(size); - - status = gl843_begin_scan(dev, sensor, &local_reg, SANE_TRUE); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to begin scan: %s\n", __func__, sane_strstatus(status)); - return status; - } - - /* waits for valid data */ - do - sanei_genesys_test_buffer_empty (dev, &steps); - while (steps); - - /* now we're on target, we can read data */ - status = sanei_genesys_read_data_from_scanner(dev, data.data(), size); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to read data: %s\n", __func__, sane_strstatus(status)); - return status; - } - RIE(gl843_stop_action_no_move(dev, &local_reg)); - - if (DBG_LEVEL >= DBG_data) - sanei_genesys_write_pnm_file("gl843_search_position.pnm", data.data(), 8, 1, pixels, - dev->model->search_lines); - - status = gl843_end_scan(dev, &local_reg, SANE_TRUE); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to end scan: %s\n", __func__, sane_strstatus(status)); - return status; - } - - /* update regs to copy ASIC internal state */ - dev->reg = local_reg; - - status = - sanei_genesys_search_reference_point (dev, sensor, data.data(), 0, dpi, pixels, - dev->model->search_lines); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to set search reference point: %s\n", __func__, - sane_strstatus(status)); - return status; - } - - return SANE_STATUS_GOOD; -} - -/* - * sets up register for coarse gain calibration - * todo: check it for scanners using it */ -static SANE_Status -gl843_init_regs_for_coarse_calibration(Genesys_Device * dev, const Genesys_Sensor& sensor, - Genesys_Register_Set& regs) -{ - SANE_Status status = SANE_STATUS_GOOD; - uint8_t channels; - uint8_t cksel; - - DBGSTART; - cksel = (regs.find_reg(0x18).value & REG18_CKSEL) + 1; /* clock speed = 1..4 clocks */ - - /* set line size */ - if (dev->settings.scan_mode == ScanColorMode::COLOR_SINGLE_PASS) - channels = 3; - else - channels = 1; - - int flags = SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_SINGLE_LINE | - SCAN_FLAG_IGNORE_LINE_DISTANCE; - - if (dev->settings.scan_method == ScanMethod::TRANSPARENCY) { - flags |= SCAN_FLAG_USE_XPA; - } - - ScanSession session; - session.params.xres = dev->settings.xres; - session.params.yres = dev->settings.yres; - session.params.startx = 0; - session.params.starty = 0; - session.params.pixels = sensor.optical_res / cksel; // XXX STEF XXX dpi instead of pixels! - session.params.lines = 20; - session.params.depth = 16; - session.params.channels = channels; - session.params.scan_method = dev->settings.scan_method; - session.params.scan_mode = dev->settings.scan_mode; - session.params.color_filter = dev->settings.color_filter; - session.params.flags = flags; - gl843_compute_session(dev, session, sensor); - - status = gl843_init_scan_regs(dev, sensor, ®s, session); - - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to setup scan: %s\n", __func__, sane_strstatus(status)); - return status; - } - sanei_genesys_set_motor_power(regs, false); - - DBG(DBG_info, "%s: optical sensor res: %d dpi, actual res: %d\n", __func__, - sensor.optical_res / cksel, dev->settings.xres); - - status = dev->model->cmd_set->bulk_write_register(dev, regs); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to bulk write registers: %s\n", __func__, sane_strstatus(status)); - return status; - } - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - -/** @brief moves the slider to steps at motor base dpi - * @param dev device to work on - * @param steps number of steps to move - * */ -static SANE_Status -gl843_feed (Genesys_Device * dev, unsigned int steps) -{ - Genesys_Register_Set local_reg; - SANE_Status status = SANE_STATUS_GOOD; - GenesysRegister *r; - float resolution; - uint8_t val; - - DBGSTART; - - /* prepare local registers */ - local_reg = dev->reg; - - resolution=sanei_genesys_get_lowest_ydpi(dev); - - const auto& sensor = sanei_genesys_find_sensor(dev, resolution); - - ScanSession session; - session.params.xres = resolution; - session.params.yres = resolution; - session.params.startx = 0; - session.params.starty = steps; - session.params.pixels = 100; - session.params.lines = 3; - session.params.depth = 8; - session.params.channels = 3; - session.params.scan_method = dev->settings.scan_method; - session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS; - session.params.color_filter = ColorFilter::RED; - session.params.flags = SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_FEEDING | - SCAN_FLAG_IGNORE_LINE_DISTANCE; - gl843_compute_session(dev, session, sensor); - - status = gl843_init_scan_regs(dev, sensor, &local_reg, session); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to set up registers: %s\n", __func__, sane_strstatus(status)); - DBGCOMPLETED; - return status; - } - - /* clear scan and feed count */ - RIE (sanei_genesys_write_register (dev, REG0D, REG0D_CLRLNCNT)); - RIE (sanei_genesys_write_register (dev, REG0D, REG0D_CLRMCNT)); - - /* set up for no scan */ - r = sanei_genesys_get_address(&local_reg, REG01); - r->value &= ~REG01_SCAN; - - /* send registers */ - RIE (dev->model->cmd_set->bulk_write_register(dev, local_reg)); - - try { - status = gl843_start_action (dev); - } catch (...) { - DBG(DBG_error, "%s: failed to start motor: %s\n", __func__, sane_strstatus(status)); - try { - gl843_stop_action(dev); - } catch (...) {} - try { - // restore original registers - dev->model->cmd_set->bulk_write_register(dev, dev->reg); - } catch (...) {} - throw; - } - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to start motor: %s\n", __func__, sane_strstatus(status)); - gl843_stop_action (dev); - - /* restore original registers */ - dev->model->cmd_set->bulk_write_register(dev, dev->reg); - return status; - } - - /* wait until feed count reaches the required value, but do not - * exceed 30s */ - do - { - status = sanei_genesys_get_status (dev, &val); - } - while (status == SANE_STATUS_GOOD && !(val & FEEDFSH)); - - // looks like the scanner locks up if we scan immediately after feeding - sanei_genesys_sleep_ms(100); - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - -static SANE_Status gl843_move_to_ta (Genesys_Device * dev); - -/* init registers for shading calibration */ -/* shading calibration is done at dpihw */ -static SANE_Status -gl843_init_regs_for_shading(Genesys_Device * dev, const Genesys_Sensor& sensor, - Genesys_Register_Set& regs) -{ - SANE_Status status = SANE_STATUS_GOOD; - int move, resolution, dpihw, factor; - uint16_t strpixel; - - DBGSTART; - - /* initial calibration reg values */ - regs = dev->reg; - - dev->calib_channels = 3; - if (dev->settings.scan_method == ScanMethod::TRANSPARENCY) - dev->calib_lines = dev->model->shading_ta_lines; - else - dev->calib_lines = dev->model->shading_lines; - dpihw = sanei_genesys_compute_dpihw_calibration(dev, sensor, dev->settings.xres); - factor=sensor.optical_res/dpihw; - resolution=dpihw; - - const auto& calib_sensor = sanei_genesys_find_sensor(dev, resolution, - dev->settings.scan_method); - - if (dev->settings.scan_method == ScanMethod::TRANSPARENCY && - dev->model->model_id == MODEL_CANON_CANOSCAN_8600F && - dev->settings.xres == 4800) - { - float offset = SANE_UNFIX(dev->model->x_offset_ta); - offset /= calib_sensor.get_ccd_size_divisor_for_dpi(resolution); - offset = (offset * calib_sensor.optical_res) / MM_PER_INCH; - - unsigned size = SANE_UNFIX(dev->model->x_size_ta); - size /= calib_sensor.get_ccd_size_divisor_for_dpi(resolution); - size = (size * calib_sensor.optical_res) / MM_PER_INCH; - - dev->calib_pixels_offset = offset; - dev->calib_pixels = size; - } - else - { - dev->calib_pixels_offset = 0; - dev->calib_pixels = calib_sensor.sensor_pixels / factor; - } - - dev->calib_resolution = resolution; - - int flags = SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE | - SCAN_FLAG_IGNORE_LINE_DISTANCE; - - if (dev->settings.scan_method == ScanMethod::TRANSPARENCY) - { - // note: move_to_ta() function has already been called and the sensor is at the - // transparency adapter - move = 0; // already at dev->model->y_offset_calib_ta implicitly - flags |= SCAN_FLAG_USE_XPA; - } - else - move = SANE_UNFIX(dev->model->y_offset_calib); - - move = (move * resolution) / MM_PER_INCH; - - ScanSession session; - session.params.xres = resolution; - session.params.yres = resolution; - session.params.startx = dev->calib_pixels_offset; - session.params.starty = move; - session.params.pixels = dev->calib_pixels; - session.params.lines = dev->calib_lines; - session.params.depth = 16; - session.params.channels = dev->calib_channels; - session.params.scan_method = dev->settings.scan_method; - session.params.scan_mode = dev->settings.scan_mode; - session.params.color_filter = dev->settings.color_filter; - session.params.flags = flags; - gl843_compute_session(dev, session, calib_sensor); - - status = gl843_init_scan_regs(dev, calib_sensor, ®s, session); - - // the pixel number may be updated to conform to scanner constraints - dev->calib_pixels = dev->current_setup.pixels; - - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to setup scan: %s\n", __func__, sane_strstatus(status)); - return status; - } - - dev->calib_total_bytes_to_read = dev->read_bytes_left; - - dev->scanhead_position_in_steps += dev->calib_lines + move; - sanei_genesys_get_double(®s,REG_STRPIXEL,&strpixel); - DBG(DBG_info, "%s: STRPIXEL=%d\n", __func__, strpixel); - - status = dev->model->cmd_set->bulk_write_register(dev, regs); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to bulk write registers: %s\n", __func__, sane_strstatus(status)); - return status; - } - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - -/** @brief set up registers for the actual scan - */ -static SANE_Status -gl843_init_regs_for_scan (Genesys_Device * dev, const Genesys_Sensor& sensor) -{ - int channels; - int flags; - int depth; - float move; - int move_dpi; - float start; - - SANE_Status status = SANE_STATUS_GOOD; - - DBG(DBG_info, "%s ", __func__); - debug_dump(DBG_info, dev->settings); - - /* channels */ - if (dev->settings.scan_mode == ScanColorMode::COLOR_SINGLE_PASS) - channels = 3; - else - channels = 1; - - /* depth */ - depth = dev->settings.depth; - if (dev->settings.scan_mode == ScanColorMode::LINEART) - depth = 1; - - move_dpi = dev->motor.base_ydpi; - - flags = 0; - if (dev->settings.scan_method == ScanMethod::TRANSPARENCY) - { - // note: move_to_ta() function has already been called and the sensor is at the - // transparency adapter - move = SANE_UNFIX(dev->model->y_offset_ta) - SANE_UNFIX(dev->model->y_offset_calib_ta); - flags |= SCAN_FLAG_USE_XPA; - } - else - move = SANE_UNFIX(dev->model->y_offset); - - move += dev->settings.tl_y; - move = (move * move_dpi) / MM_PER_INCH; - DBG(DBG_info, "%s: move=%f steps\n", __func__, move); - - /* start */ - if(dev->settings.scan_method==ScanMethod::TRANSPARENCY) - start = SANE_UNFIX (dev->model->x_offset_ta); - else - start = SANE_UNFIX (dev->model->x_offset); - - start /= sensor.get_ccd_size_divisor_for_dpi(dev->settings.xres); - start += dev->settings.tl_x; - start = (start * sensor.optical_res) / MM_PER_INCH; - - /* enable emulated lineart from gray data */ - if(dev->settings.scan_mode == ScanColorMode::LINEART - && dev->settings.dynamic_lineart) - { - flags |= SCAN_FLAG_DYNAMIC_LINEART; - } - - ScanSession session; - session.params.xres = dev->settings.xres; - session.params.yres = dev->settings.yres; - session.params.startx = start; - session.params.starty = move; - session.params.pixels = dev->settings.pixels; - session.params.lines = dev->settings.lines; - session.params.depth = depth; - session.params.channels = channels; - session.params.scan_method = dev->settings.scan_method; - session.params.scan_mode = dev->settings.scan_mode; - session.params.color_filter = dev->settings.color_filter; - session.params.flags = flags; - gl843_compute_session(dev, session, sensor); - - status = gl843_init_scan_regs(dev, sensor, &dev->reg, session); - - if (status != SANE_STATUS_GOOD) - return status; - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - -/** - * This function sends gamma tables to ASIC - */ -static SANE_Status -gl843_send_gamma_table(Genesys_Device* dev, const Genesys_Sensor& sensor) -{ - int size; - SANE_Status status = SANE_STATUS_GOOD; - int i; - - DBGSTART; - - size = 256; - - /* allocate temporary gamma tables: 16 bits words, 3 channels */ - std::vector<uint8_t> gamma(size * 2 * 3); - - std::vector<uint16_t> rgamma = get_gamma_table(dev, sensor, GENESYS_RED); - std::vector<uint16_t> ggamma = get_gamma_table(dev, sensor, GENESYS_GREEN); - std::vector<uint16_t> bgamma = get_gamma_table(dev, sensor, GENESYS_BLUE); - - // copy sensor specific's gamma tables - for (i = 0; i < size; i++) { - gamma[i * 2 + size * 0 + 0] = rgamma[i] & 0xff; - gamma[i * 2 + size * 0 + 1] = (rgamma[i] >> 8) & 0xff; - gamma[i * 2 + size * 2 + 0] = ggamma[i] & 0xff; - gamma[i * 2 + size * 2 + 1] = (ggamma[i] >> 8) & 0xff; - gamma[i * 2 + size * 4 + 0] = bgamma[i] & 0xff; - gamma[i * 2 + size * 4 + 1] = (bgamma[i] >> 8) & 0xff; - } - - /* send address */ - status = gl843_set_buffer_address (dev, 0x0000); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to set buffer address: %s\n", __func__, sane_strstatus(status)); - return status; - } - - /* send data */ - status = sanei_genesys_bulk_write_data(dev, 0x28, gamma.data(), size * 2 * 3); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to send gamma table: %s\n", __func__, sane_strstatus(status)); - return status; - } - - DBG(DBG_proc, "%s: completed\n", __func__); - return SANE_STATUS_GOOD; -} - -/* this function does the led calibration by scanning one line of the calibration - area below scanner's top on white strip. - --needs working coarse/gain -*/ -static SANE_Status -gl843_led_calibration (Genesys_Device * dev, Genesys_Sensor& sensor, Genesys_Register_Set& regs) -{ - int num_pixels; - int total_size; - int used_res; - int i, j; - SANE_Status status = SANE_STATUS_GOOD; - int val; - int channels, depth; - int avg[3], avga, avge; - int turn; - uint16_t expr, expg, expb; - - SANE_Bool acceptable = SANE_FALSE; - - DBG(DBG_proc, "%s\n", __func__); - - /* offset calibration is always done in color mode */ - channels = 3; - depth = 16; - used_res = sensor.optical_res; - - auto& calib_sensor = sanei_genesys_find_sensor_for_write(dev, used_res, - dev->settings.scan_method); - num_pixels = - (calib_sensor.sensor_pixels * used_res) / calib_sensor.optical_res; - - /* initial calibration reg values */ - regs = dev->reg; - - ScanSession session; - session.params.xres = used_res; - session.params.yres = dev->motor.base_ydpi; - session.params.startx = 0; - session.params.starty = 0; - session.params.pixels = num_pixels; - session.params.lines = 1; - session.params.depth = depth; - session.params.channels = channels; - session.params.scan_method = dev->settings.scan_method; - session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS; - session.params.color_filter = dev->settings.color_filter; - session.params.flags = SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_SINGLE_LINE | - SCAN_FLAG_IGNORE_LINE_DISTANCE; - gl843_compute_session(dev, session, calib_sensor); - - status = gl843_init_scan_regs(dev, calib_sensor, ®s, session); - - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to setup scan: %s\n", __func__, sane_strstatus(status)); - return status; - } - - RIE(dev->model->cmd_set->bulk_write_register(dev, regs)); - - total_size = dev->read_bytes_left; - - std::vector<uint8_t> line(total_size); - -/* - we try to get equal bright leds here: - - loop: - average per color - adjust exposure times - */ - - expr = calib_sensor.exposure.red; - expg = calib_sensor.exposure.green; - expb = calib_sensor.exposure.blue; - - turn = 0; - - do - { - - calib_sensor.exposure.red = expr; - calib_sensor.exposure.green = expg; - calib_sensor.exposure.blue = expb; - - sanei_genesys_set_exposure(regs, calib_sensor.exposure); - - RIE(dev->model->cmd_set->bulk_write_register(dev, regs)); - - DBG(DBG_info, "%s: starting first line reading\n", __func__); - RIE (gl843_begin_scan(dev, calib_sensor, ®s, SANE_TRUE)); - RIE (sanei_genesys_read_data_from_scanner(dev, line.data(), total_size)); - RIE(gl843_stop_action_no_move(dev, ®s)); - - if (DBG_LEVEL >= DBG_data) - { - char fn[30]; - snprintf(fn, 30, "gl843_led_%02d.pnm", turn); - sanei_genesys_write_pnm_file(fn, line.data(), depth, channels, num_pixels, 1); - } - - acceptable = SANE_TRUE; - - for (j = 0; j < channels; j++) - { - avg[j] = 0; - for (i = 0; i < num_pixels; i++) - { - if (dev->model->is_cis) - val = - line[i * 2 + j * 2 * num_pixels + 1] * 256 + - line[i * 2 + j * 2 * num_pixels]; - else - val = - line[i * 2 * channels + 2 * j + 1] * 256 + - line[i * 2 * channels + 2 * j]; - avg[j] += val; - } - - avg[j] /= num_pixels; - } - - DBG(DBG_info, "%s: average: %d,%d,%d\n", __func__, avg[0], avg[1], avg[2]); - - acceptable = SANE_TRUE; - - if (avg[0] < avg[1] * 0.95 || avg[1] < avg[0] * 0.95 || - avg[0] < avg[2] * 0.95 || avg[2] < avg[0] * 0.95 || - avg[1] < avg[2] * 0.95 || avg[2] < avg[1] * 0.95) - acceptable = SANE_FALSE; - - if (!acceptable) - { - avga = (avg[0] + avg[1] + avg[2]) / 3; - expr = (expr * avga) / avg[0]; - expg = (expg * avga) / avg[1]; - expb = (expb * avga) / avg[2]; -/* - keep the resulting exposures below this value. - too long exposure drives the ccd into saturation. - we may fix this by relying on the fact that - we get a striped scan without shading, by means of - statistical calculation -*/ - avge = (expr + expg + expb) / 3; - - /* don't overflow max exposure */ - if (avge > 3000) - { - expr = (expr * 2000) / avge; - expg = (expg * 2000) / avge; - expb = (expb * 2000) / avge; - } - if (avge < 50) - { - expr = (expr * 50) / avge; - expg = (expg * 50) / avge; - expb = (expb * 50) / avge; - } - - } - - RIE (gl843_stop_action (dev)); - - turn++; - - } - while (!acceptable && turn < 100); - - DBG(DBG_info, "%s: acceptable exposure: %d,%d,%d\n", __func__, expr, expg, expb); - - sensor.exposure = calib_sensor.exposure; - - gl843_slow_back_home (dev, SANE_TRUE); - - DBG(DBG_proc, "%s: completed\n", __func__); - return status; -} - - - -/** - * average dark pixels of a 8 bits scan of a given channel - */ -static int -dark_average_channel (uint8_t * data, unsigned int pixels, unsigned int lines, - unsigned int channels, unsigned int black, int channel) -{ - unsigned int i, j, k, count; - unsigned int avg[3]; - uint8_t val; - - /* computes average values on black margin */ - for (k = 0; k < channels; k++) - { - avg[k] = 0; - count = 0; - // FIXME: start with the second line because the black pixels often have noise on the first - // line; the cause is probably incorrectly cleaned up previous scan - for (i = 1; i < lines; i++) - { - for (j = 0; j < black; j++) - { - val = data[i * channels * pixels + j*channels + k]; - avg[k] += val; - count++; - } - } - if (count) - avg[k] /= count; - DBG(DBG_info, "%s: avg[%d] = %d\n", __func__, k, avg[k]); - } - DBG(DBG_info, "%s: average = %d\n", __func__, avg[channel]); - return avg[channel]; -} - -/** @brief calibrate AFE offset - * Iterate doing scans at target dpi until AFE offset if correct. One - * color line is scanned at a time. Scanning head doesn't move. - * @param dev device to calibrate - */ -static SANE_Status -gl843_offset_calibration(Genesys_Device * dev, const Genesys_Sensor& sensor, - Genesys_Register_Set& regs) -{ - SANE_Status status = SANE_STATUS_GOOD; - unsigned int channels, bpp; - int pass, total_size, i, resolution, lines; - int topavg[3], bottomavg[3], avg[3]; - int top[3], bottom[3], black_pixels, pixels, factor, dpihw; - - DBGSTART; - - /* offset calibration is always done in color mode */ - channels = 3; - lines = 8; - bpp = 8; - - /* compute divider factor to compute final pixels number */ - dpihw = sanei_genesys_compute_dpihw_calibration(dev, sensor, dev->settings.xres); - factor = sensor.optical_res / dpihw; - resolution = dpihw; - - const auto& calib_sensor = sanei_genesys_find_sensor(dev, resolution, - dev->settings.scan_method); - - int target_pixels = calib_sensor.sensor_pixels / factor; - int start_pixel = 0; - black_pixels = calib_sensor.black_pixels / factor; - - if (dev->settings.scan_method == ScanMethod::TRANSPARENCY && - dev->model->model_id == MODEL_CANON_CANOSCAN_8600F && - dev->settings.xres == 4800) - { - start_pixel = SANE_UNFIX(dev->model->x_offset_ta); - start_pixel /= calib_sensor.get_ccd_size_divisor_for_dpi(resolution); - start_pixel = (start_pixel * calib_sensor.optical_res) / MM_PER_INCH; - - target_pixels = SANE_UNFIX(dev->model->x_size_ta); - target_pixels /= calib_sensor.get_ccd_size_divisor_for_dpi(resolution); - target_pixels = (target_pixels * calib_sensor.optical_res) / MM_PER_INCH; - } - - int flags = SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_SINGLE_LINE | - SCAN_FLAG_IGNORE_LINE_DISTANCE; - - if (dev->settings.scan_method == ScanMethod::TRANSPARENCY) - { - flags |= SCAN_FLAG_USE_XPA; - } - - ScanSession session; - session.params.xres = resolution; - session.params.yres = resolution; - session.params.startx = start_pixel; - session.params.starty = 0; - session.params.pixels = target_pixels; - session.params.lines = lines; - session.params.depth = bpp; - session.params.channels = channels; - session.params.scan_method = dev->settings.scan_method; - session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS; - session.params.color_filter = ColorFilter::RED; - session.params.flags = flags; - gl843_compute_session(dev, session, calib_sensor); - pixels = session.output_pixels; - - DBG(DBG_io, "%s: dpihw =%d\n", __func__, dpihw); - DBG(DBG_io, "%s: factor =%d\n", __func__, factor); - DBG(DBG_io, "%s: resolution =%d\n", __func__, resolution); - DBG(DBG_io, "%s: pixels =%d\n", __func__, pixels); - DBG(DBG_io, "%s: black_pixels=%d\n", __func__, black_pixels); - status = gl843_init_scan_regs(dev, calib_sensor, ®s, session); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to setup scan: %s\n", __func__, sane_strstatus(status)); - return status; - } - sanei_genesys_set_motor_power(regs, false); - - /* allocate memory for scans */ - total_size = dev->read_bytes_left; - - std::vector<uint8_t> first_line(total_size); - std::vector<uint8_t> second_line(total_size); - - /* init gain and offset */ - for (i = 0; i < 3; i++) - { - bottom[i] = 10; - dev->frontend.set_offset(i, bottom[i]); - dev->frontend.set_gain(i, 0); - } - RIE(gl843_set_fe(dev, calib_sensor, AFE_SET)); - - /* scan with obttom AFE settings */ - RIE(dev->model->cmd_set->bulk_write_register(dev, regs)); - DBG(DBG_info, "%s: starting first line reading\n", __func__); - RIE(gl843_begin_scan(dev, calib_sensor, ®s, SANE_TRUE)); - RIE(sanei_genesys_read_data_from_scanner(dev, first_line.data(), total_size)); - RIE(gl843_stop_action_no_move(dev, ®s)); - - if (DBG_LEVEL >= DBG_data) - { - char fn[40]; - snprintf(fn, 40, "gl843_bottom_offset_%03d_%03d_%03d.pnm", - bottom[0], bottom[1], bottom[2]); - sanei_genesys_write_pnm_file(fn, first_line.data(), bpp, channels, pixels, lines); - } - - for (i = 0; i < 3; i++) - { - bottomavg[i] = dark_average_channel(first_line.data(), pixels, lines, channels, black_pixels, i); - DBG(DBG_io2, "%s: bottom avg %d=%d\n", __func__, i, bottomavg[i]); - } - - /* now top value */ - for (i = 0; i < 3; i++) - { - top[i] = 255; - dev->frontend.set_offset(i, top[i]); - } - RIE(gl843_set_fe(dev, calib_sensor, AFE_SET)); - - /* scan with top AFE values */ - RIE(dev->model->cmd_set->bulk_write_register(dev, regs)); - DBG(DBG_info, "%s: starting second line reading\n", __func__); - RIE(gl843_begin_scan(dev, calib_sensor, ®s, SANE_TRUE)); - RIE(sanei_genesys_read_data_from_scanner(dev, second_line.data(), total_size)); - RIE(gl843_stop_action_no_move(dev, ®s)); - - for (i = 0; i < 3; i++) - { - topavg[i] = dark_average_channel(second_line.data(), pixels, lines, channels, black_pixels, i); - DBG(DBG_io2, "%s: top avg %d=%d\n", __func__, i, topavg[i]); - } - - pass = 0; - - std::vector<uint8_t> debug_image; - size_t debug_image_lines = 0; - std::string debug_image_info; - - /* loop until acceptable level */ - while ((pass < 32) - && ((top[0] - bottom[0] > 1) - || (top[1] - bottom[1] > 1) || (top[2] - bottom[2] > 1))) - { - pass++; - - /* settings for new scan */ - for (i = 0; i < 3; i++) - { - if (top[i] - bottom[i] > 1) - { - dev->frontend.set_offset(i, (top[i] + bottom[i]) / 2); - } - } - RIE(gl843_set_fe(dev, calib_sensor, AFE_SET)); - - /* scan with no move */ - RIE(dev->model->cmd_set->bulk_write_register(dev, regs)); - DBG(DBG_info, "%s: starting second line reading\n", __func__); - RIE(gl843_begin_scan(dev, calib_sensor, ®s, SANE_TRUE)); - RIE(sanei_genesys_read_data_from_scanner(dev, second_line.data(), total_size)); - RIE(gl843_stop_action_no_move(dev, ®s)); - - if (DBG_LEVEL >= DBG_data) - { - char title[100]; - snprintf(title, 100, "lines: %d pixels_per_line: %d offsets[0..2]: %d %d %d\n", - lines, pixels, - dev->frontend.get_offset(0), - dev->frontend.get_offset(1), - dev->frontend.get_offset(2)); - debug_image_info += title; - std::copy(second_line.begin(), second_line.end(), std::back_inserter(debug_image)); - debug_image_lines += lines; - } - - for (i = 0; i < 3; i++) - { - avg[i] = dark_average_channel(second_line.data(), pixels, lines, channels, black_pixels, i); - DBG(DBG_info, "%s: avg[%d]=%d offset=%d\n", __func__, i, avg[i], - dev->frontend.get_offset(i)); - } - - /* compute new boundaries */ - for (i = 0; i < 3; i++) - { - if (topavg[i] >= avg[i]) - { - topavg[i] = avg[i]; - top[i] = dev->frontend.get_offset(i); - } - else - { - bottomavg[i] = avg[i]; - bottom[i] = dev->frontend.get_offset(i); - } - } - } - - if (DBG_LEVEL >= DBG_data) - { - sanei_genesys_write_file("gl843_offset_all_desc.txt", - (uint8_t*) debug_image_info.data(), debug_image_info.size()); - sanei_genesys_write_pnm_file("gl843_offset_all.pnm", - debug_image.data(), bpp, channels, pixels, debug_image_lines); - } - - DBG(DBG_info, "%s: offset=(%d,%d,%d)\n", __func__, - dev->frontend.get_offset(0), - dev->frontend.get_offset(1), - dev->frontend.get_offset(2)); - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - - -/* alternative coarse gain calibration - this on uses the settings from offset_calibration and - uses only one scanline - */ -/* - with offset and coarse calibration we only want to get our input range into - a reasonable shape. the fine calibration of the upper and lower bounds will - be done with shading. - */ -static SANE_Status -gl843_coarse_gain_calibration(Genesys_Device * dev, const Genesys_Sensor& sensor, - Genesys_Register_Set& regs, int dpi) -{ - int pixels, factor, dpihw; - int total_size; - int i, j, channels; - SANE_Status status = SANE_STATUS_GOOD; - int max[3]; - float coeff; - int val, lines; - int resolution; - int bpp; - - DBG(DBG_proc, "%s: dpi = %d\n", __func__, dpi); - dpihw=sanei_genesys_compute_dpihw_calibration(dev, sensor, dpi); - factor=sensor.optical_res/dpihw; - - /* coarse gain calibration is always done in color mode */ - channels = 3; - - /* follow CKSEL */ - if (dev->model->ccd_type == CCD_KVSS080) - { - if(dev->settings.xres<sensor.optical_res) - { - coeff=0.9; - } - else - { - coeff=1.0; - } - } - else - { - coeff=1.0; - } - resolution=dpihw; - lines=10; - bpp=8; - int target_pixels = sensor.sensor_pixels / factor; - - int flags = SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_SINGLE_LINE | - SCAN_FLAG_IGNORE_LINE_DISTANCE; - - if (dev->settings.scan_method == ScanMethod::TRANSPARENCY) - { - flags |= SCAN_FLAG_USE_XPA; - } - - const auto& calib_sensor = sanei_genesys_find_sensor(dev, resolution, - dev->settings.scan_method); - - ScanSession session; - session.params.xres = resolution; - session.params.yres = resolution; - session.params.startx = 0; - session.params.starty = 0; - session.params.pixels = target_pixels; - session.params.lines = lines; - session.params.depth = bpp; - session.params.channels = channels; - session.params.scan_method = dev->settings.scan_method; - session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS; - session.params.color_filter = dev->settings.color_filter; - session.params.flags = flags; - gl843_compute_session(dev, session, calib_sensor); - pixels = session.output_pixels; - - try { - status = gl843_init_scan_regs(dev, calib_sensor, ®s, session); - } catch (...) { - try { - sanei_genesys_set_motor_power(regs, false); - } catch (...) {} - throw; - } - - sanei_genesys_set_motor_power(regs, false); - - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to setup scan: %s\n", __func__, sane_strstatus(status)); - return status; - } - - RIE(dev->model->cmd_set->bulk_write_register(dev, regs)); - - total_size = dev->read_bytes_left; - - std::vector<uint8_t> line(total_size); - - RIE(gl843_set_fe(dev, calib_sensor, AFE_SET)); - RIE(gl843_begin_scan(dev, calib_sensor, ®s, SANE_TRUE)); - RIE(sanei_genesys_read_data_from_scanner (dev, line.data(), total_size)); - RIE(gl843_stop_action_no_move(dev, ®s)); - - if (DBG_LEVEL >= DBG_data) - sanei_genesys_write_pnm_file("gl843_gain.pnm", line.data(), bpp, channels, pixels, lines); - - /* average value on each channel */ - for (j = 0; j < channels; j++) - { - max[j] = 0; - // FIXME: start from the second line because the first line often has artifacts. Probably - // caused by unclean cleanup of previous scans - for (i = pixels/4 + pixels; i < (pixels*3/4) + pixels; i++) - { - if(bpp==16) - { - if (dev->model->is_cis) - val = - line[i * 2 + j * 2 * pixels + 1] * 256 + - line[i * 2 + j * 2 * pixels]; - else - val = - line[i * 2 * channels + 2 * j + 1] * 256 + - line[i * 2 * channels + 2 * j]; - } - else - { - if (dev->model->is_cis) - val = line[i + j * pixels]; - else - val = line[i * channels + j]; - } - - max[j] += val; - } - max[j] = max[j] / (pixels/2); - - /* the flow of data through the frontend ADC is as follows (see e.g. VM8192 datasheet) - input - -> apply offset (o = i + 260mV * (DAC[7:0]-127.5)/127.5) -> - -> apply gain (o = i * 208/(283-PGA[7:0]) - -> ADC - - Here we have some input data that was acquired with zero gain (PGA==0). - We want to compute gain such that the output would approach full ADC range (controlled by - gain_white_ref). - - We want to solve the following for {PGA}: - - {input} * 208 / (283 - 0) = {output} - {input} * 208 / (283 - {PGA}) = {target output} - - The solution is the following equation: - - {PGA} = 283 * (1 - {output} / {target output}) - */ - float gain = ((float) max[j] / (calib_sensor.gain_white_ref*coeff)); - int code = 283 * (1 - gain); - if (code > 255) - code = 255; - else if (code < 0) - code = 0; - dev->frontend.set_gain(j, code); - - DBG(DBG_proc, "%s: channel %d, max=%d, gain = %f, setting:%d\n", __func__, j, max[j], gain, - code); - } - - if (dev->model->is_cis) { - uint8_t gain0 = dev->frontend.get_gain(0); - if (gain0 > dev->frontend.get_gain(1)) { - gain0 = dev->frontend.get_gain(1); - } - if (gain0 > dev->frontend.get_gain(2)) { - gain0 = dev->frontend.get_gain(2); - } - dev->frontend.set_gain(0, gain0); - dev->frontend.set_gain(1, gain0); - dev->frontend.set_gain(2, gain0); - } - - if (channels == 1) { - dev->frontend.set_gain(0, dev->frontend.get_gain(1)); - dev->frontend.set_gain(2, dev->frontend.get_gain(1)); - } - - RIE (gl843_stop_action (dev)); - - status=gl843_slow_back_home (dev, SANE_TRUE); - - DBGCOMPLETED; - return status; -} - -/* - * wait for lamp warmup by scanning the same line until difference - * between 2 scans is below a threshold - */ -static SANE_Status -gl843_init_regs_for_warmup (Genesys_Device * dev, - const Genesys_Sensor& sensor, - Genesys_Register_Set * reg, - int *channels, int *total_size) -{ - int num_pixels; - SANE_Status status = SANE_STATUS_GOOD; - int dpihw; - int resolution; - int factor; - - DBGSTART; - if (dev == NULL || reg == NULL || channels == NULL || total_size == NULL) - return SANE_STATUS_INVAL; - - /* setup scan */ - *channels=3; - resolution=600; - dpihw=sanei_genesys_compute_dpihw_calibration(dev, sensor, resolution); - resolution=dpihw; - - const auto& calib_sensor = sanei_genesys_find_sensor(dev, resolution, - dev->settings.scan_method); - factor = calib_sensor.optical_res/dpihw; - num_pixels = calib_sensor.sensor_pixels/(factor*2); - *total_size = num_pixels * 3 * 1; - - *reg = dev->reg; - - ScanSession session; - session.params.xres = resolution; - session.params.yres = resolution; - session.params.startx = num_pixels/2; - session.params.starty = 0; - session.params.pixels = num_pixels; - session.params.lines = 1; - session.params.depth = 8; - session.params.channels = *channels; - session.params.scan_method = dev->settings.scan_method; - session.params.scan_mode = ScanColorMode::COLOR_SINGLE_PASS; - session.params.color_filter = dev->settings.color_filter; - session.params.flags = SCAN_FLAG_DISABLE_SHADING | - SCAN_FLAG_DISABLE_GAMMA | - SCAN_FLAG_SINGLE_LINE | - SCAN_FLAG_IGNORE_LINE_DISTANCE; - gl843_compute_session(dev, session, calib_sensor); - - status = gl843_init_scan_regs(dev, calib_sensor, reg, session); - - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to setup scan: %s\n", __func__, sane_strstatus(status)); - return status; - } - - sanei_genesys_set_motor_power(*reg, false); - RIE(dev->model->cmd_set->bulk_write_register(dev, *reg)); - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - -/** - * set up GPIO/GPOE for idle state -WRITE GPIO[17-21]= GPIO19 -WRITE GPOE[17-21]= GPOE21 GPOE20 GPOE19 GPOE18 -genesys_write_register(0xa8,0x3e) -GPIO(0xa8)=0x3e - */ -static SANE_Status -gl843_init_gpio (Genesys_Device * dev) -{ - SANE_Status status = SANE_STATUS_GOOD; - int idx; - - DBGSTART; - - RIE (sanei_genesys_write_register (dev, REG6E, dev->gpo.enable[0])); - RIE (sanei_genesys_write_register (dev, REG6F, dev->gpo.enable[1])); - RIE (sanei_genesys_write_register (dev, REG6C, dev->gpo.value[0])); - RIE (sanei_genesys_write_register (dev, REG6D, dev->gpo.value[1])); - - idx=0; - while(dev->model->gpo_type != gpios[idx].gpo_type && gpios[idx].gpo_type!=0) - { - idx++; - } - if (gpios[idx].gpo_type!=0) - { - RIE (sanei_genesys_write_register (dev, REGA6, gpios[idx].ra6)); - RIE (sanei_genesys_write_register (dev, REGA7, gpios[idx].ra7)); - RIE (sanei_genesys_write_register (dev, REGA8, gpios[idx].ra8)); - RIE (sanei_genesys_write_register (dev, REGA9, gpios[idx].ra9)); - } - else - { - status=SANE_STATUS_INVAL; - } - - DBGCOMPLETED; - return status; -} - - -/* * - * initialize ASIC from power on condition - */ -static SANE_Status -gl843_boot (Genesys_Device * dev, SANE_Bool cold) -{ - SANE_Status status = SANE_STATUS_GOOD; - uint8_t val; - - DBGSTART; - - if(cold) - { - RIE (sanei_genesys_write_register (dev, 0x0e, 0x01)); - RIE (sanei_genesys_write_register (dev, 0x0e, 0x00)); - } - - if(dev->usb_mode == 1) - { - val = 0x14; - } - else - { - val = 0x11; - } - RIE (sanei_genesys_write_0x8c (dev, 0x0f, val)); - - /* test CHKVER */ - RIE (sanei_genesys_read_register (dev, REG40, &val)); - if (val & REG40_CHKVER) - { - RIE (sanei_genesys_read_register (dev, 0x00, &val)); - DBG(DBG_info, "%s: reported version for genesys chip is 0x%02x\n", __func__, val); - } - - /* Set default values for registers */ - gl843_init_registers (dev); - - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - // turns on vref control for maximum current of the motor driver - RIE(sanei_genesys_write_register (dev, REG6B, 0x72)); - } - else - { - RIE(sanei_genesys_write_register (dev, REG6B, 0x02)); - } - - /* Write initial registers */ - RIE (dev->model->cmd_set->bulk_write_register(dev, dev->reg)); - - // Enable DRAM by setting a rising edge on bit 3 of reg 0x0b - val = dev->reg.find_reg(0x0b).value & REG0B_DRAMSEL; - val = (val | REG0B_ENBDRAM); - RIE (sanei_genesys_write_register (dev, REG0B, val)); - dev->reg.find_reg(0x0b).value = val; - - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - RIE (sanei_genesys_write_0x8c (dev, 0x10, 0xc8)); - } - else - { - RIE (sanei_genesys_write_0x8c (dev, 0x10, 0xb4)); - } - - /* CLKSET */ - int clock_freq = REG0B_48MHZ; - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - clock_freq = REG0B_60MHZ; - - val = (dev->reg.find_reg(0x0b).value & ~REG0B_CLKSET) | clock_freq; - - RIE (sanei_genesys_write_register (dev, REG0B, val)); - dev->reg.find_reg(0x0b).value = val; - - /* prevent further writings by bulk write register */ - dev->reg.remove_reg(0x0b); - - if (dev->model->model_id != MODEL_CANON_CANOSCAN_8600F) - { - // set up end access - // FIXME: this is overwritten in gl843_init_gpio - sanei_genesys_write_register(dev, REGA7, 0x04); - sanei_genesys_write_register(dev, REGA9, 0x00); - } - - /* set RAM read address */ - RIE (sanei_genesys_write_register (dev, REG29, 0x00)); - RIE (sanei_genesys_write_register (dev, REG2A, 0x00)); - RIE (sanei_genesys_write_register (dev, REG2B, 0x00)); - - /* setup gpio */ - RIE (gl843_init_gpio (dev)); - - gl843_feed (dev, 300); - sanei_genesys_sleep_ms(100); - - DBGCOMPLETED; - return SANE_STATUS_GOOD; -} - -/* * - * initialize backend and ASIC : registers, motor tables, and gamma tables - * then ensure scanner's head is at home - */ -static SANE_Status -gl843_init (Genesys_Device * dev) -{ - SANE_Status status = SANE_STATUS_GOOD; - - DBG_INIT (); - DBGSTART; - - status=sanei_genesys_asic_init(dev, 0); - - DBGCOMPLETED; - return status; -} - -static SANE_Status -gl843_update_hardware_sensors (Genesys_Scanner * s) -{ - /* do what is needed to get a new set of events, but try to not lose - any of them. - */ - SANE_Status status = SANE_STATUS_GOOD; - uint8_t val; - - RIE (sanei_genesys_read_register (s->dev, REG6D, &val)); - - switch (s->dev->model->gpo_type) - { - case GPO_KVSS080: - s->buttons[BUTTON_SCAN_SW].write((val & 0x04) == 0); - break; - case GPO_G4050: - s->buttons[BUTTON_SCAN_SW].write((val & 0x01) == 0); - s->buttons[BUTTON_FILE_SW].write((val & 0x02) == 0); - s->buttons[BUTTON_EMAIL_SW].write((val & 0x04) == 0); - s->buttons[BUTTON_COPY_SW].write((val & 0x08) == 0); - break; - case GPO_CS4400F: - case GPO_CS8400F: - default: - break; - } - - return status; -} - -/** @brief move sensor to transparency adaptor - * Move sensor to the calibration of the transparency adapator (XPA). - * @param dev device to use - */ -static SANE_Status -gl843_move_to_ta (Genesys_Device * dev) -{ - SANE_Status status = SANE_STATUS_GOOD; - float resolution; - unsigned int feed; - - DBGSTART; - - resolution=sanei_genesys_get_lowest_ydpi(dev); - feed = 16*(SANE_UNFIX (dev->model->y_offset_calib_ta) * resolution) / MM_PER_INCH; - status = gl843_feed (dev, feed); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to move to XPA calibration area\n", __func__); - return status; - } - - DBGCOMPLETED; - return status; -} - - -/** @brief search for a full width black or white strip. - * This function searches for a black or white stripe across the scanning area. - * When searching backward, the searched area must completely be of the desired - * color since this area will be used for calibration which scans forward. - * @param dev scanner device - * @param forward SANE_TRUE if searching forward, SANE_FALSE if searching backward - * @param black SANE_TRUE if searching for a black strip, SANE_FALSE for a white strip - * @return SANE_STATUS_GOOD if a matching strip is found, SANE_STATUS_UNSUPPORTED if not - */ -static SANE_Status -gl843_search_strip (Genesys_Device * dev, const Genesys_Sensor& sensor, - SANE_Bool forward, SANE_Bool black) -{ - unsigned int pixels, lines, channels; - SANE_Status status = SANE_STATUS_GOOD; - Genesys_Register_Set local_reg; - size_t size; - int steps, depth, dpi; - unsigned int pass, count, found, x, y; - GenesysRegister *r; - - DBG(DBG_proc, "%s %s %s\n", __func__, black ? "black" : "white", forward ? "forward" : "reverse"); - - gl843_set_fe(dev, sensor, AFE_SET); - status = gl843_stop_action (dev); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to stop: %s\n", __func__, sane_strstatus(status)); - return status; - } - - /* set up for a gray scan at lowest dpi */ - dpi = sanei_genesys_get_lowest_dpi(dev); - channels = 1; - - const auto& calib_sensor = sanei_genesys_find_sensor(dev, dpi, dev->settings.scan_method); - - /* 10 MM */ - /* lines = (10 * dpi) / MM_PER_INCH; */ - /* shading calibation is done with dev->motor.base_ydpi */ - lines = (dev->model->shading_lines * dpi) / dev->motor.base_ydpi; - depth = 8; - pixels = (calib_sensor.sensor_pixels * dpi) / calib_sensor.optical_res; - - dev->scanhead_position_in_steps = 0; - - local_reg = dev->reg; - - ScanSession session; - session.params.xres = dpi; - session.params.yres = dpi; - session.params.startx = 0; - session.params.starty = 0; - session.params.pixels = pixels; - session.params.lines = lines; - session.params.depth = depth; - session.params.channels = channels; - session.params.scan_method = dev->settings.scan_method; - session.params.scan_mode = ScanColorMode::GRAY; - session.params.color_filter = ColorFilter::RED; - session.params.flags = SCAN_FLAG_DISABLE_SHADING | SCAN_FLAG_DISABLE_SHADING; - gl843_compute_session(dev, session, calib_sensor); - - status = gl843_init_scan_regs(dev, calib_sensor, &local_reg, session); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to setup for scan: %s\n", __func__, sane_strstatus(status)); - return status; - } - - size = dev->read_bytes_left; - std::vector<uint8_t> data(size); - - /* set up for reverse or forward */ - r = sanei_genesys_get_address(&local_reg, REG02); - if (forward) - r->value &= ~REG02_MTRREV; - else - r->value |= REG02_MTRREV; - - - status = dev->model->cmd_set->bulk_write_register(dev, local_reg); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to bulk write registers: %s\n", __func__, sane_strstatus(status)); - return status; - } - - status = gl843_begin_scan(dev, calib_sensor, &local_reg, SANE_TRUE); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to begin scan: %s\n", __func__, sane_strstatus(status)); - return status; - } - - /* waits for valid data */ - do - sanei_genesys_test_buffer_empty (dev, &steps); - while (steps); - - /* now we're on target, we can read data */ - status = sanei_genesys_read_data_from_scanner(dev, data.data(), size); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to read data: %s\n", __func__, sane_strstatus(status)); - return status; - } - - status = gl843_stop_action (dev); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: gl843_stop_action failed\n", __func__); - return status; - } - - pass = 0; - if (DBG_LEVEL >= DBG_data) - { - char fn[40]; - snprintf(fn, 40, "gl843_search_strip_%s_%s%02d.pnm", - black ? "black" : "white", forward ? "fwd" : "bwd", (int)pass); - sanei_genesys_write_pnm_file(fn, data.data(), depth, channels, pixels, lines); - } - - /* loop until strip is found or maximum pass number done */ - found = 0; - while (pass < 20 && !found) - { - status = - dev->model->cmd_set->bulk_write_register(dev, local_reg); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to bulk write registers: %s\n", __func__, - sane_strstatus(status)); - return status; - } - - /* now start scan */ - status = gl843_begin_scan(dev, calib_sensor, &local_reg, SANE_TRUE); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to begin scan: %s\n", __func__, sane_strstatus(status)); - return status; - } - - /* waits for valid data */ - do - sanei_genesys_test_buffer_empty (dev, &steps); - while (steps); - - /* now we're on target, we can read data */ - status = sanei_genesys_read_data_from_scanner(dev, data.data(), size); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to read data: %s\n", __func__, sane_strstatus(status)); - return status; - } - - status = gl843_stop_action (dev); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: gl843_stop_action failed\n", __func__); - return status; - } - - if (DBG_LEVEL >= DBG_data) - { - char fn[40]; - snprintf(fn, 40, "gl843_search_strip_%s_%s%02d.pnm", - black ? "black" : "white", forward ? "fwd" : "bwd", (int)pass); - sanei_genesys_write_pnm_file(fn, data.data(), depth, channels, pixels, lines); - } - - /* search data to find black strip */ - /* when searching forward, we only need one line of the searched color since we - * will scan forward. But when doing backward search, we need all the area of the - * same color */ - if (forward) - { - for (y = 0; y < lines && !found; y++) - { - count = 0; - /* count of white/black pixels depending on the color searched */ - for (x = 0; x < pixels; x++) - { - /* when searching for black, detect white pixels */ - if (black && data[y * pixels + x] > 90) - { - count++; - } - /* when searching for white, detect black pixels */ - if (!black && data[y * pixels + x] < 60) - { - count++; - } - } - - /* at end of line, if count >= 3%, line is not fully of the desired color - * so we must go to next line of the buffer */ - /* count*100/pixels < 3 */ - if ((count * 100) / pixels < 3) - { - found = 1; - DBG(DBG_data, "%s: strip found forward during pass %d at line %d\n", __func__, - pass, y); - } - else - { - DBG(DBG_data, "%s: pixels=%d, count=%d (%d%%)\n", __func__, pixels, count, - (100 * count) / pixels); - } - } - } - else /* since calibration scans are done forward, we need the whole area - to be of the required color when searching backward */ - { - count = 0; - for (y = 0; y < lines; y++) - { - /* count of white/black pixels depending on the color searched */ - for (x = 0; x < pixels; x++) - { - /* when searching for black, detect white pixels */ - if (black && data[y * pixels + x] > 90) - { - count++; - } - /* when searching for white, detect black pixels */ - if (!black && data[y * pixels + x] < 60) - { - count++; - } - } - } - - /* at end of area, if count >= 3%, area is not fully of the desired color - * so we must go to next buffer */ - if ((count * 100) / (pixels * lines) < 3) - { - found = 1; - DBG(DBG_data, "%s: strip found backward during pass %d \n", __func__, pass); - } - else - { - DBG(DBG_data, "%s: pixels=%d, count=%d (%d%%)\n", __func__, pixels, count, - (100 * count) / pixels); - } - } - pass++; - } - if (found) - { - status = SANE_STATUS_GOOD; - DBG(DBG_info, "%s: %s strip found\n", __func__, black ? "black" : "white"); - } - else - { - status = SANE_STATUS_UNSUPPORTED; - DBG(DBG_info, "%s: %s strip not found\n", __func__, black ? "black" : "white"); - } - - DBG(DBG_proc, "%s: completed\n", __func__); - return status; -} - -/** - * Send shading calibration data. The buffer is considered to always hold values - * for all the channels. - */ -static SANE_Status -gl843_send_shading_data (Genesys_Device * dev, const Genesys_Sensor& sensor, - uint8_t * data, int size) -{ - SANE_Status status = SANE_STATUS_GOOD; - uint32_t final_size, length, i; - uint8_t *buffer; - int count,offset; - unsigned int cksel; - GenesysRegister *r; - uint16_t dpiset, strpixel, endpixel, startx, factor; - - DBGSTART; - - offset=0; - length=size; - r = sanei_genesys_get_address(&dev->reg, REG01); - if(r->value & REG01_SHDAREA) - { - /* recompute STRPIXEL used shading calibration so we can - * compute offset within data for SHDAREA case */ - r = sanei_genesys_get_address(&dev->reg, REG18); - cksel= (r->value & REG18_CKSEL)+1; - sanei_genesys_get_double(&dev->reg,REG_DPISET,&strpixel); - sanei_genesys_get_double(&dev->reg,REG_DPISET,&dpiset); - factor=sensor.optical_res/sanei_genesys_compute_dpihw(dev, sensor, dpiset); - - /* start coordinate in optical dpi coordinates */ - startx = (sensor.dummy_pixel / cksel) / factor; - - /* current scan coordinates */ - sanei_genesys_get_double(&dev->reg,REG_STRPIXEL,&strpixel); - sanei_genesys_get_double(&dev->reg,REG_ENDPIXEL,&endpixel); - - if (dev->model->model_id == MODEL_CANON_CANOSCAN_8600F) - { - int optical_res = sensor.optical_res / dev->current_setup.ccd_size_divisor; - int dpiset_real = dpiset / dev->current_setup.ccd_size_divisor; - int half_ccd_factor = optical_res / - sanei_genesys_compute_dpihw_calibration(dev, sensor, dpiset_real); - strpixel /= half_ccd_factor; - endpixel /= half_ccd_factor; - } - - /* 16 bit words, 2 words per color, 3 color channels */ - offset=(strpixel-startx)*2*2*3; - length=(endpixel-strpixel)*2*2*3; - DBG(DBG_info, "%s: STRPIXEL=%d, ENDPIXEL=%d, startx=%d\n", __func__, strpixel, endpixel, - startx); - } - - /* compute and allocate size for final data */ - final_size = ((length+251) / 252) * 256; - DBG(DBG_io, "%s: final shading size=%04x (length=%d)\n", __func__, final_size, length); - std::vector<uint8_t> final_data(final_size, 0); - - /* copy regular shading data to the expected layout */ - buffer = final_data.data(); - count = 0; - - /* loop over calibration data */ - for (i = 0; i < length; i++) - { - buffer[count] = data[offset+i]; - count++; - if ((count % (256*2)) == (252*2)) - { - count += 4*2; - } - } - - /* send data */ - status = sanei_genesys_set_buffer_address (dev, 0); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to set buffer address: %s\n", __func__, sane_strstatus(status)); - return status; - } - - status = dev->model->cmd_set->bulk_write_data (dev, 0x3c, final_data.data(), count); - if (status != SANE_STATUS_GOOD) - { - DBG(DBG_error, "%s: failed to send shading table: %s\n", __func__, sane_strstatus(status)); - } - - DBGCOMPLETED; - return status; -} - - -/** the gl843 command set */ -static Genesys_Command_Set gl843_cmd_set = { - "gl843-generic", /* the name of this set */ - - [](Genesys_Device* dev) -> bool { (void) dev; return true; }, - - gl843_init, - gl843_init_regs_for_warmup, - gl843_init_regs_for_coarse_calibration, - gl843_init_regs_for_shading, - gl843_init_regs_for_scan, - - gl843_get_filter_bit, - gl843_get_lineart_bit, - gl843_get_bitset_bit, - gl843_get_gain4_bit, - gl843_get_fast_feed_bit, - gl843_test_buffer_empty_bit, - gl843_test_motor_flag_bit, - - gl843_set_fe, - gl843_set_powersaving, - gl843_save_power, - - gl843_begin_scan, - gl843_end_scan, - - gl843_send_gamma_table, - - gl843_search_start_position, - - gl843_offset_calibration, - gl843_coarse_gain_calibration, - gl843_led_calibration, - - NULL, - gl843_slow_back_home, - NULL, - - sanei_genesys_bulk_write_register, - sanei_genesys_bulk_write_data, - sanei_genesys_bulk_read_data, - - gl843_update_hardware_sensors, - - gl843_load_document, - gl843_detect_document_end, - gl843_eject_document, - gl843_search_strip, - - sanei_genesys_is_compatible_calibration, - gl843_move_to_ta, - gl843_send_shading_data, - gl843_calculate_current_setup, - gl843_boot -}; - -SANE_Status -sanei_gl843_init_cmd_set (Genesys_Device * dev) -{ - dev->model->cmd_set = &gl843_cmd_set; - return SANE_STATUS_GOOD; -} |